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Электронный компонент: OM5721

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DATA SHEET
Product specification
Supersedes data of 1998 Aug 18
File under Integrated Circuits, IC02
1999 May 05
INTEGRATED CIRCUITS
OM5721
STB5660 (Set-Top Box) STB
concept
1999 May 05
2
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
CONTENTS
1
FEATURES
1.1
SAA7214 features
1.1.1
General SAA7214 features
1.1.2
MPEG2 systems features
1.1.3
External interface features
1.2
SAA7215 features
1.2.1
General SAA7215 features
1.2.2
CPU related features
1.2.3
MPEG2 system features
1.2.4
MPEG2 video features
1.2.5
MPEG2 audio features
1.2.6
Graphics features
2
GENERAL DESCRIPTION
2.1
Introduction
2.2
Reference design goal
2.3
Benefits
2.3.1
Key system benefits
2.3.2
Key IC benefits
3
BLOCK DIAGRAM
4
HARDWARE
4.1
IC list
4.2
Main board
4.2.1
SAA7214
4.2.2
SAA7215
4.3
Front-end
4.4
Front panel
4.4.1
LNB interface
4.4.2
IR
4.4.3
Keys
4.4.4
SCART control
4.5
Memory
4.5.1
Non-Volatile Memory (NVM)
4.5.2
DRAM
4.5.3
Boot ROM
4.5.4
Flash
4.5.5
Video and Graphics RAM
4.5.6
Memory options
4.6
Connectors
5
SOFTWARE DESCRIPTION
5.1
Software overview
5.1.1
General Software Resources
5.1.2
Application layer
5.1.3
System Control layer
5.1.4
Platform layer
5.1.5
I/O device drivers
5.2
General software resources
5.3
System Control layer
5.4
Platform layer
5.5
Application layer
5.5.1
Top level menu
5.5.2
Installation menu
5.5.3
Tuning menu
5.5.4
Feature demonstration menu
6
DEVELOPMENT ENVIRONMENT
6.1
Summary of the STB5660 kit
6.1.1
The hardware
6.1.2
The software
6.1.3
Documentation
6.1.4
Test reports
6.2
How to get started
6.3
Hardware interface with the STB5660
6.4
Software interface with the STB5660
6.5
Running `Hello world'
7
CONTENTS LIST FOR STB5660
8
DEFINITIONS
9
LIFE SUPPORT APPLICATIONS
10
PURCHASE OF PHILIPS I
2
C COMPONENTS
1999 May 05
3
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
1
FEATURES
1.1
SAA7214 features
1.1.1
G
ENERAL
SAA7214
FEATURES
Internal PR3001 32-bit RISC processor running at
40.5 MHz
Comprehensive driver software and development tool
support
A JTAG interface for board test support
1-kbyte data and 4-kbyte instruction caches
(write-through style).
1.1.2
MPEG2
SYSTEMS FEATURES
Parsing of Transport Stream (TS), Philips
Semiconductors hardware and proprietary software
data streams. Maximum input rate is 108 Mbits/s.
A Digital Video Broadcasting (DVB) compliant
descrambler core, incorporating storage for up to
6 control word pairs
Hardware section filtering based on 32 different Packet
Identifiers (PIDs) with a flexible number of filter
conditions (8 or 4-byte condition plus 8 or 4-byte mask)
per PID and a total filter capacity of 40 (8-byte condition
checks) or up to 80 (4-byte condition checks) filter
conditions
4 Transport Stream/Packetized Elementary Stream
(PES) filters for retrieval of data at TS or PES level for
applications such as subtitling, TXT or retrieval of
private data
Flexible Direct Memory Access (DMA) based storage of
the 32 section substreams and 4 TS/PES data
substreams in the external memory
System time base management with a double counter
mechanism for clock control and discontinuity handling
2 Presentation Time Stamp (PTS)/Decoding Time
Stamp (DTS) timers
A General Purpose/High Speed (GP/HS) filter which can
serve as alternative input from e.g. IEEE 1394 devices.
It can also output either scrambled or descrambled TS
to IEEE 1394 devices.
1.1.3
E
XTERNAL INTERFACE FEATURES
A 16-bit microcontroller extension bus supporting
DRAM, Flash, (E)PROM and external memory mapped
I/O devices. It also supports a synchronous interface to
communicate with the integrated MPEG Audio Video
Graphics (AVG) decoder SAA7215 at 40.5 Mbytes/s.
An IEEE 1284 interface supporting master and slave
modes. Usable as a general purpose port.
3 UART (RS232) data ports with DMA capabilities
(187.5 kbits/s) including hardware flow control signals
RXD, TXD, RTS, CTS for modem support
Two dedicated smart-card reader interfaces (ISO 7816
compatible) with DMA capabilities
Two I
2
C-bus master/slave transceivers supporting the
standard (100 kbits/s) and fast (400 kbits/s) I
2
C-bus
modes
32 general purpose, bidirectional I/O interface pins,
which may also be used as interrupt inputs.
2 Pulse Width Modulated (PWM) outputs with 8-bit
resolution.
1.2
SAA7215 features
1.2.1
G
ENERAL
SAA7215
FEATURES
Single or double external synchronous DRAM organized
as 1M
16 or 2
1M
16 interfacing at 81 MHz. Due to
efficient memory use in MPEG decoding, more than
1 Mbit is available for graphics in the single SDRAM
configuration whereas 17 Mbits are available in the
double SDRAM configuration targeted to BSkyB 3.00
and Canal+ 4.0 specifications.
Dedicated input for compressed audio and video in PES
or Elementary Stream (ES) in byte wide or bit serial
format. Accompanying strobe signals distinguish
between audio and video data.
Optimum compatibility with the SAA7214 Transport
Mega Instructions Per Second (TMIPS) controller
Flexible memory allocation under control of the external
Central Processing Unit (CPU) enables optimized
partitioning of memory for different tasks.
Boundary scan testing implemented.
1.2.2
CPU
RELATED FEATURES
External SDRAM self test
Asynchronous interface possible with external
microcontroller
1999 May 05
4
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
Support of fast DMA transfer
High speed/low latency interface with second graphics
SDRAM
Byte access to the full SDRAM in the upper 16-Mbit
address range
Fast 16-bit data plus 22-bit address synchronous
interface with external controller at up to 40.5 MHz
Support of Motorola ColdFire and 68xxx interfaces as
well as LSI L64108 interface.
1.2.3
MPEG2
SYSTEM FEATURES
Support for seamless time base change (edition)
Processing of errors flagged by channel decoding
section.
1.2.4
MPEG2
VIDEO FEATURES
Decoding of MPEG2 video up to main level, main profile
Output picture format: CCIR-601 4 : 2 : 2 interlaced
pictures. Picture format 720 to 576 at 50 Hz or
720 to 480 at 60 Hz.
Support of constant and variable bit rates up to
15 Mbits/s for the elementary stream
Digital video input/output interface on 8-bit,
27 MHz (CbYCrY multiplexed bus), at a CCIR-656
format
Analog video output interface on both the RGB and
Y/C/CVBS formats (internal digital encoder)
Horizontal and vertical pan and scan allows the
extraction of a window from the coded picture
Flexible horizontal scaling from 0.5 up to 4 allows easy
aspect ratio conversion including support for 2.21 : 1
aspect ratio movies. In case of shrinking an anti-aliasing
pre-filter is applied.
Vertical scaling with fixed factors 0.5, 0.75 factor 0.75 is
used for letter-box presentation, 1 or 2. Factor 0.5
realizes picture shrink
Factor 2 can be used for up-conversion of pictures with
288 (240) lines or less
Horizontal and vertical scaling can be combined to scale
pictures to
1
/
4
their original size, thus freeing up screen
space for graphic applications like Electronic Program
Guides (EPGs)
Non full screen MPEG pictures can be displayed in a
box of which position and background colour are
adjustable by the external microcontroller. Structured
background is available as part of the graphic features.
Nominal video input buffer size for MP at ML 27-Mbit
Decoding and presentation can be independently
handled under CPU control.
Various trick modes under control of external
microcontroller
Freeze field/frame on I- or P-frames; restart on I-picture
Freeze field on B-frames; restart at any moment
Scanning and decoding of I- or I- and P-frames in a
IBP sequence
Single step mode
Repeat/Skip field for time base correction
Repeat/Skip frame for display parity integrity.
1.2.5
MPEG2
AUDIO FEATURES
Decoding of 2 channel, layer I and II MPEG audio.
Support for mono, stereo, intensity stereo and dual
channel mode.
Constant and variable bit rates up to 448 kbits/s
Supported audio sampling frequencies: 48, 44.1, 32, 24,
22.05 and 16 kHz
Selectable output channel in dual channel mode
Dynamic range control at output.
Independent channel volume control and programmable
inter-channel crosstalk through a baseband audio
processing unit.
Muting possibility via (external) controller. Automatic
muting in case of errors.
Generation of `beeps' with programmable tone height,
duration and amplitude
Support for up to 8 channels linear Pulse Code
Modulation (PCM) elementary audio streams with 8, 16,
20 and 24 bits/sample and bit rates up to 6.144 Mbits/s
96 kHz Linear Pulse Code Modulated (LPCM) samples
will be mapped to a 48 kHz multi-channel format
Volume control for linear PCM samples in three steps:
-
6 dB,
-
12 dB and
-
18 dB
Burst-formatting of AC-3 elementary streams and
MPEG-2 multi-channel streams in ES or PES format for
interconnection with an external multi-channel decoder
via the digital audio output or the IEC 958 output
1999 May 05
5
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
Serial multi-channel digital audio output with 16, 18, 20
or 24 bits/sample, compatible either to I
2
S or Japanese
formats. Output can be set to high-impedance mode via
the external controller.
Serial Sony/Philips Digital Interface (SPDIF) (IEC 958)
audio output. Output can be set to high-impedance
mode.
1.2.6
G
RAPHICS FEATURES
Graphics is presented in boxes independent of video
format
Boxes can be up to full screen allowing double buffer
display mechanism
Two independent graphics planes are available for
background and/or graphics overlay
Two independent data paths with RGB 4 : 4 : 4 and
YCbCr 4 : 2 : 2 formats available with independent
mixing
RGB path transparent to YCbCr format
Screen arrangement of boxes is determined by display
list mechanism which allows for multiple boxes,
background loading, fast switching, scrolling,
overlapping and fading of regions
Real-time anti-flickering performed in hardware.
Programmable hardware available for off-line
anti-flickering.
Hard-edged or soft-edged wiping of regions available
Support of 2, 4, 8, 16 bits/pixel in fixed bit maps format
or coded in accordance to the DVB variable/run length
standard for region based graphics
Chrominance down-sampling filter switched per region
Display colours are obtained via Colour Look-Up Tables
(CLUT) or directly from bitmap. CLUT output can be
YCbCrT at 8-bit for each signal component thus
enabling 16 M different colours and 6-bit for T which
gives 64 mixing levels with video. CLUT output can also
be RGBT with same resolutions. Non-linear processing
available by means of LUTs.
Conversion matrices available to allow any format on
any different data path (RGB or YCbCr)
Graphics boxes may overlap vertically even inside one
graphics layer due to the use of flexible chained
descriptors
Internal support for fast 3-D block moves in external
SDRAM through Data Manipulation Unit (DMU)
DMU allows format conversion and bit manipulation
from a chained list of instructions
Graphics mechanism can be used for signal generation
in the vertical blanking interval. Useful for teletext, wide
screen signalling, closed caption, etc.
Support for a single down loadable cursor of 1K pixel
with programmable shape
Supported shapes are 8
128 pixels, 16
64 pixels,
32
32 pixels, 64
16 pixels and 128
8 pixels
Cursor colours obtained via two 16 entry CLUTs with
YCbCrT at 6, 4, 4 respectively
2 bits and RGBT at 4, 4, 4 respectively 4 bits (or 4, 5, 3,
respectively 4 bits). Mixing of cursor with video and
graphics in 4 levels.
Cursor can be moved freely across the screen without
overlapping restrictions.
2
GENERAL DESCRIPTION
2.1
Introduction
Philips Semiconductors Set-Top Box (STB) concept is a
Digital Media Broadcast (DMB) platform designed to help
developers bring the right product to market at the right
time, with a minimum of risk. A complete hardware and
software solution for fully-featured digital cable, satellite
and terrestrial system, it is based around a powerful,
programmable embedded microprocessor core, allowing
manufacturers to develop and rapidly evaluate system
designs and test application software.
This programmability is the key to maintaining flexibility
and reducing risk. Application software can be easily
modified to meet changing requirements, so highly
featured and differentiated STB designs can be brought
quickly to market. It also allows flexible handling of
graphics, so manufacturers can implement menus,
electronic program guides and the sophisticated
graphics-based features expected by today's users.
Sophisticated hardware is supported by a full suite of
software, developed in partnership with customers to meet
real-world needs and provide the reliability required for
consumer electronics products.
1999 May 05
6
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
2.2
Reference design goal
The Philips STB concept STB5660 is a reference design
of a complete hardware and software solution intended for
the digital satellite receiver Set-Top Box market. This
reference design addresses the potential customer base
who is targeting the new world of digital media
broadcasting. The reference platform for a Set-Top Box
combines the key ICs, the SAA7214 transport MPEG
source decoder and the SAA7215 AVG decoder/video
encoder, and the software to run a Set-Top Box.
As in many cases a platform is a stepping stone from
which evolution and specification enhancements can be
launched. The first reference design of the platform
contains the necessary functions which demonstrate the
performance and capabilities of the system.
Enhancements in the ICs as well as for SW modules will
be released during the lifetime of the platform.
The convention which has been used is that backwards
compatibility is guaranteed within the platform (STB5000
range).
The main objectives are:
Firstly providing this complete system, greatly reduces
the required investments needed in scarce design
resources, and helps customers focus on building a
position and responding quickly to the market demand
Secondly, an advantage of the reference design
approach is that the system consisting of complex
functions realized in silicon and software can be
validated in tangible results
Thirdly, to create a stable platform from which
customized solutions can be derived faster.
It is expected that in the coming years the market will grow
in all segments, satellite, cable and terrestrial; and that the
captive broadcasters gradually open up their system,
focusing more on the services rather then the contents of
the box. Their service role at the beginning is to create the
market by having box content, then it will change towards
the real core service activities bringing content and new
services to the home.
This changing behaviour of the service providers calls for
the semiconductor providers to offer competitive solutions,
enabling the future dreams of the service providers. This
implies that in order to plan the evolution of the Set-Top
Box functionality, one must be positioned and in control of
the whole system.
2.3
Benefits
2.3.1
K
EY SYSTEM BENEFITS
STB5660 offers a good compromise between flexibility,
performance and integration of functions which leads to
a very attractive price/performance offer
The SAA7214 performs the descrambling,
demultiplexing and control of the STB while the
SAA7215 performs the media processing functions such
as MPEG2 audio video and graphics processing.
The communication between the two ICs as well as the
memory partitioning and management have been
designed so that a true unified memory concept can be
implemented with no performance degradation.
Within the STB family of products, HW and SW
footprints will be maintained to ensure the maximum
possible reuse of resources
Philips offering the most comprehensive portfolio of ICs
combined with our well known technological capabilities
brings the best on a complete system level. This in
combination with our local technical support centres
gives the customer a fast and secure inroad to the new
field of emerging technology.
2.3.2
K
EY
IC
BENEFITS
SAA7214 incorporates a low cost high performance
32 bits MIPS processor with 4 kbytes instruction cache
and 1-kbyte data cache. In addition a 4-kbyte
second-level cache, designed for SW optimization but
can also be used for `last minute' CPU intensive
software patches is offered to software developers,
boosting application performance.
A flexible hardware/software partitioning and
optimization for DVB TS demultiplexing has been
designed targeted to Canal+ specification. This
partitioning makes parsing of incoming stream in
hardware, in order to off-load the processor and makes
most of the processing from system memory by the
MIPS processor, which leaves to software developers
the freedom to allocate the right priority at the
application level for MPEG system data handling.
All required DVB/MPEG2 system services are covered
by SAA7214, such as full DVB descrambling, section
filtering with 32 PIDs handled in hardware and more if
required in software, TS/PES filter for maximum
flexibility in the service handling and edition (time base
discontinuity)
1999 May 05
7
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
In terms of interfaces, the SAA7214 interfaces with
basic STB peripherals such as UART, smart card
interface, IEEE 1284, but also with the next generation
high speed interfaces such as IEEE 1394
SAA7214 is able to control with a high speed clock
(40.5 MHz) DRAMs, Flash, EEPROM and is able to
control the SAA7215 as a memory mapped device with
a maximum sustained rate of 40.5 Mbytes/s, which
enables fast graphic update in the second SDRAM
SAA7215 has a scalable memory architecture: 16 Mbits
for low-end and 32 Mbits for mid/high-end applications.
Furthermore, there is a full decoupling of MPEG
processing and graphics/CPU control buses and
control, which offers a high bandwidth and low latency
for CPU when accessing the graphics memory.
SAA7215 features 5 independent graphics planes that
can address all the known digital TV video and graphics
requirements:
Background: where still pictures can be displayed in
the background
Foreground: where broadcast graphics and the user
interface can be displayed
Video: where still or moving video is displayed
Cursor: implemented in hardware to offer fast
responses times.
Graphics are processed internally in high resolution
RGB 4 : 4 : 4 format which provides the best quality in
graphics rendering as well as for mixing with video in
4 : 2 : 2 format
A dedicated Data Manipulation Unit (bit block transfer
type) offers very fast block move and data manipulation
during the transfers. This can be used to perform scaling
of graphics, transfers from 4 : 2 : 0 to CLUT or RGB
formats, or fast block move in MPEG or graphics
SDRAMs.
SAA7215 offers flexible scaling features, including letter
box conversion that is now becoming a needed features
for broadcasters
Two independent mixed video/graphics and video-only
signal paths are implemented and allow software
disabling of the user interface for recording on VCR
Integrated digital video encoder with Y/C, CVBS and
RGB outputs reduce the Bill of Materials (BOM) and also
the board space, while still offering the possibility to
have access to the YUV digital bus through CCIR-656
interface.
SAA7215 is ready for future audio features such as
AC-3 or high fidelity LPCM audio, such as requested by
the world-wide DVD standard, but also for high-end STB
in the USA. SAA7215 processes LPCM audio data and
can interface gluelessly with an external multi-channel
audio decoder such as the SAA2505, through IEC 958
interface.
1999 May 05
8
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
3
BLOCK DIAGRAM
Fig.1 Software block diagram.
handbook, full pagewidth
FCE047
FRONT PANEL
COMMS
SATELLITE
FRONT-END
TELETEXT
PROCESSING
PSI
PROCESSING
GRAPHICS
LIBRARY
IEEE 1394
GENERAL
SOFTWARE
RESOURCES
OPERATING
SYSTEM
ABSTRACTION
(OSA)
REAL-TIME
KERNEL
(RTK)
BROAD
SUPPORT
PACKAGE
(BSP)
SYSTEM CONTROL
LAYER
FEATURE DEMONSTRATION APPLICATION
APPLICATION
LAYER
PLATFORM
LAYER
DRIVERS
UART
I
2
C-BUS
PARALLEL
I/O
FRONT PANEL
DEBUG
LNB
MSP
AV DECODER
NVM
FLASH
SMART CARD
IEEE 1284
IEEE 1394
SATELLITE TUNER
SDD
1999
May
05
9
Philips Semiconductors
Product specification
STB5660 (Set-T
op Box) STB concept
OM5721
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_
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Fig.2 Hardware block diagram.
handbook, full pagewidth
FCE046
EEPROM
32 KBYTES
8
SAA7214
TMIPS
SAA7215
TMIPS
EEPROM
256 KBYTES
8
DRAM
2 MBYTES
1394
L
+
PHY
TDA8044
SDD
TDA8060
TSA5512
SD1288MK2
TUNER
FRONT PANEL CONTROL
I
2
C-BUS
BUFFERS
MICRO 87C524
UART
smart card
SCART
smart card
LR
RGB
SVHS (Y
+
UV)
AUDIO
AV
Q
I
PES
CVBS
UDA1320
DAC
IEEE 1394
IEEE 1284
RS232
16-MBIT
VIDEO/
GRAPHICS
RAM
TDA8004
TDA8004
16-MBIT
GRAPHICS/
CPU DATA
RAM
FLASH
2
2 MBYTES
1999 May 05
10
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
4
HARDWARE
4.1
IC list
Table 1
Description of system ICs
4.2
Main board
4.2.1
SAA7214
The SAA7214 (TMIPS) is a transport MPEG2 source
system decoder it includes a MIPS R3000 microcontroller
core and several peripheral interfaces such as UARTs,
I
2
C-bus units, an IEEE 1394, and an IEEE 1284
(Centronics) interface.
SAA7214 receives transport streams through a versatile
stream input interface capable of handling both
byte-parallel and bit-serial streams, in various formats,
supporting data streams up to and including 13.5 Mbytes/s
(108 Mbits/s). The stream data is first applied to an on-chip
descrambler incorporating DVB descrambling algorithms,
on the basis of 6 control word pairs stored in on-chip RAM.
Demultiplexing is subsequently applied to the stream, to
separate up to 40 individual data streams.
The demultiplexer section includes clock recovery and
timebase management.
Program Specific Information (PSI), Service Information
(SI), Conditional Access (CA) messages and private data
is selected and stored in external memory, for subsequent
off-line processing by the internal R3000 microcontroller
core.
HARDWARE
DESCRIPTION
Channel module
SD1288MK2
Tuner
TDA8044
Satellite demodulator and decoder
Front panel board
87C524
Microcontroller
Main board
SAA7214
Descrambler, demultiplexer and MIPS
core
SAA7215
Audio, video, graphics and digital
encoder
PDI1394L11
Link and physical layer of 1394
PDI1394P11
Link and physical layer of 1394
UDA1320
Audio DAC
TDA8004
Smart Card Interface
4.2.2
SAA7215
The SAA7215 is a MPEG2 source decoder which
combines audio decoding and video decoding.
Additionally to these basic MPEG functions it also provides
means for enhanced graphics, background display and/or
on-screen display as well as encoding of output video.
Due to an optimized architecture for audio and video
decoding, maximum capacity in external memory and
processing power from the external CPU is available for
graphic support.
4.3
Front-end
The front-end allows reception of channels transmitted by
satellite received via a satellite dish in combination with a
Low Noise Blockdown (LNB). The Outdoor unit can be
controlled with:
0FF/14 V/18 V pouring for polarisation steering
22 kHz tone switching control for band switching
Digital Satellite Equipment Control (DiSEqC) V1.0.
4.4
Front panel
4.4.1
LNB
INTERFACE
Master transmitter DiSEqC is provided and 14/18 V
switching this is routed through the digital board to the
front-end utility connector. The possibility to disable the
DiSEqC on the front panel, allows for the next generation
Quatro Phase Shift Key (QPSK) front-end which will have
DiSEqC.
4.4.2
IR
The on-board microcontroller decodes the IR commands
in RC5/6 format and relays via the serial link to the
SAA7214.
4.4.3
K
EYS
STANDBY, UP, DOWN, LEFT, RIGHT, OK, MENU
4.4.4
SCART
CONTROL
Pin 8 control as per the SCART specification for 16
9
and 4
3.
Pin 16 control as per SCART specification for RGB fast
blanking (in this case used to switch between RGB and
composite).
1999 May 05
11
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
4.5
Memory
4.5.1
N
ON
-V
OLATILE
M
EMORY
(NVM)
A 32-kbyte NVM is implemented with an EEPROM
connected to the I
2
C-bus to allow for channel data storage,
etc.
4.5.2
DRAM
2 Mbytes (1M
16); 60 ns fast or hyper-page mode.
4.5.3
B
OOT
ROM
256 kbytes (256 kbytes
8) to allow for ROM boot up and
also to provide ROM emulation.
4.5.4
F
LASH
2 Mbytes [2
(512K
16)]; this can be up-graded to
4 Mbytes [2
(1M
16)].
Two flash banks are needed to allow code to be run from
one bank while writing to the other.
4.5.5
V
IDEO AND
G
RAPHICS
RAM
4 Mbytes SDRAM [2
(1M
16)] at 81 MHz.
4.5.6
M
EMORY OPTIONS
Surface mount links can select memory configuration.
Remark: The boot chip select is selectable between Boot
ROM and Flash.
4.6
Connectors
Table 2
The main board connectors
CONNECTOR
DESCRIPTION
Optical SPDIF
A SPDIF signal from the SAA7215 is brought out via an optical output connector.
SPDIF
To allow connection of the Philips SAA2505 AC3/MPEG7.1 surround sound.
SCART
1 standard SCART, audio/video output signals only.
3 Phonos (RCAs)
CVBS, right audio and left audio.
SVHS
The Y/C output from the SAA7215 is brought out to a standard SVHS connector.
CCIR 656 connector
A connector to the CCIR 656 YUV output from the SAA7215.
JTAG
A standard JTAG connector for Boundary Scan testing.
DEBUG socket
A surface mount DEBUG socket allowing connection to a Philips REDDX connector via a
conversion board to allow connection to a REDDNET or REDDROM board.
RS232
An additional RS232-C (
12 V) interface to provide a board connector for debug use.
One half of a suitable RS232 driver chip will be used for signal level conversion.
IEEE 1394
The Philips PDI1394L11 and PDI1394P11 is implemented to provide half-duplex 1394 access
from the SAA7214.
Under isolation mode the power for the physical IC will be taken from the bus via the switching
regulator. The option between isolated and non-isolated is selectable via option links.
Two 1394 connectors are available on the back panel.
IEEE 1294
Subject to Electro-Static Discharge (ESD), standard logic are implemented as buffers to
provide 1284 to a 25-way D-type female connector on the back panel.
1999 May 05
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Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
5
SOFTWARE DESCRIPTION
5.1
Software overview
5.1.1
G
ENERAL
S
OFTWARE
R
ESOURCES
Real-time kernel
Board support package
Operating system abstraction package.
5.1.2
A
PPLICATION LAYER
Feature demonstration application.
5.1.3
S
YSTEM
C
ONTROL LAYER
Graphics library
PSI processing
Front panel communications
1394
Satellite front-end component
Teletext processing component.
5.1.4
P
LATFORM LAYER
MPEG System Processor (MSP)
Audio/Video/Graphics device driver
Front Panel device driver
Flash Memory device driver
Non-Volatile Memory device driver
Debug UART device driver
IEEE 1394 device driver
Smart Card device driver
IEEE 1284 device driver
LNB device driver
Satellite Tuner device driver
TDA8044 device driver.
5.1.5
I/O
DEVICE DRIVERS
Parallel I/O device driver
I
2
C-bus device driver
UART device driver.
5.2
General software resources
This layer is used by all the layers. Typical parts are
Real-time operating system functionality, C-library and
debug components.
5.3
System Control layer
Part of the System Control layer provides functionalities
which are a compound of device driver functionality.
Examples of the system control layer components are
teletext, which uses the TS/PES package a part of MSP
device driver and the AVG device driver. Also the front-end
satellite component is a functional layer component, it
uses the LNB device driver, the Satellite Tuner device
driver and the TDA8044 device driver.
5.4
Platform layer
The platform layers consists of set of platform drivers each
controlling a Set-Top Box functionality that is implemented
in hardware. Examples of a Set-Top Box functionality are
video decoding, audio decoding and section filtering. It is
possible that more than one platform driver can control a
physical hardware component (IC) if this component
provides a set of Set-Top Box functions.
The interface of a platform driver consists of generic set of
functions. It is the intention not to directly specify hardware
interface functions but MPEG/DVB related functions.
In this way future generations of controlled hardware use
the same sub-set of interface functions. Some platform
drivers do not directly interface with the hardware but use
an I/O platform driver. Platform drivers are not allowed to
communicate with each other. If communicating is
required between platform drivers it is under control of a
component located in the functional layer.
The I/O platform drivers provide the functions when a
device driver does not directly have access to the
hardware. Examples of I/O device drivers are an I
2
C-bus
device driver and an UART device driver.
1999 May 05
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Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
5.5
Application layer
This layer has been limited only to demonstrate the
possibilities that can be implemented at the application
layer.
5.5.1
T
OP LEVEL MENU
Main menu options:
Installation menu
Tuning menu
Feature demonstration menu.
5.5.2
I
NSTALLATION MENU
The installation menu is used to select the board
configuration options. The selected options are stored to
NVM.
Table 3
Board configuration options
Note
1. With non-DiSEqC LNBs the control is simply by
14/18 V switching for polarity and in the case of a Dual
band the use of 22 kHz signal (no modulation)
selecting the High Band. With DiSEqC LNBs the
control is by sending DiSEqC commands via
modulation in the 22 kHz signal. (This means DiSEqC
level 1).
ITEM
CONFIGURATION OPTION
LNB setup
On/off DiSEqC LNB and Single or Dual
band; note 1.
Video standard PAL or NTSC; default PAL.
SCART
Pin 16 control (RGB or composite
video signalled).
Display
Allows selection of 16 : 9 or 4 : 3 TV
screen.
5.5.3
T
UNING MENU
5.5.3.1
Transponder setup
The transponder can be setup automatically or manually.
Selecting the automatic option gives the user the
possibility to sweep the band over a particular frequency
range at all symbol rates. All transponders found will be
logged and stored to NVM. The sweep can be started by
pressing the start button via the user controls.
Selecting the automatic network option will give the user
the possibility to sweep the band over a particular
frequency range at a user defined symbol rate.
The Network Information Table (NIT) from the first
transponder found will be read and the services known in
this NIT will be logged and stored to NVM.
Table 4
Program setup
Selecting the manual option provides the user with the
ability to enter additional transponder data, or to adjust
transponders found with an auto setup. To add a
transponder the correct frequency, symbol rate,
polarisation and Forward Error Correction (FEC) rate are
required.
ITEM
OPERATION
Source
The source of the transport stream can be
selected between tuner and stream server.
In Tuner mode the ability to change the
selected transponder is available.
Listing
Shows the current transport stream and the
possible audio PIDS for the selected service.
The service can be selected and the audio
PID chosen.
1999 May 05
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Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
5.5.4
F
EATURE DEMONSTRATION MENU
Table 5
Screens highlighting the main features of the Philips SAA7214/SAA7215 chip-set.
SCREEN
FEATURE
Audio
Audio routing and
Dual channel
Audio routing options; mono, stereo, LL, RR.
Dual channel options; Channel 1, Channel 2, both (1-L, 2-R).
Mute
Sound muted
Balance
Control via a text box for left/right balance
Beep
Control of the volume, frequency and duration; the beep can then be heard.
LPCM demonstration
Show the possibility of decoding Linear Pulse Code Modulated (LPCM) audio samples. This
besides the decoding of normal MPEG audio although both cannot be not done at the same
time. This feature is for example used to play uploaded audio samples.
A command is given when the audio and video decoding is running. This command will start
the demonstration. The function itself will play about 1 second of LPCM audio and will
continue with normal MPEG audio and video decoding afterwards.
IEEE 1394
IEEE 1394 disable
I/O of IEEE 1394 traffic can be disabled. IEEE 1394 will carry on relaying any IEEE 1394
between the two IEEE 1394 ports. Also choose between input/output of data into systems.
Smart card
Smart card
A service scrambled using the default keyword will be descrambled upon insertion of a Smart
card which contains authorization to use the default keyword.
PC download
PC download
When selected, the MPEG board will wait for the download of a bit map picture, via the
IEEE 1284 port. Upon completion of the download the picture will be displayed, the progress
of the download is also displayed.
MIPS performance
MIPS Performance
This will show the MIPS performance in drystones under the current setup.
Block copy
To show a fast block copy, a bit map picture is copied across the screen. This function is also
supported in hardware but handling this in software makes the function more flexible.
The actual copying is executed in the SAA7215 hardware by the DMU. Software however has
to upload the picture, initialize and start the DMU with correct parameters. The cost however
compared to the hardware tiling is processor and memory use.
Graphics
Text and Drawings
A combination of different fonts and line drawings to demonstrate colour depth and resolution
capabilities.
Fast transfer
Fast transfer feature; via IEEE 1284.
Planes demo
Demonstration of the different graphics layers, by displaying quarter screen video over a
MPEG I frame background with superimposed text and cursor.
Fade
Combination of video and graphic layers showing fading in and out of the graphics layer.
Tiling
One smaller picture is displayed multiple times in a user selectable rectangle.
Hard-edge wiping
Two pictures in one plane, overlapping each other where the user can move and select the
pictures
Soft-edge wiping
Two user selectable and movable pictures in two planes, with transparency in the pictures.
1999 May 05
15
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
Anti-flickering
The anti-flickering demonstration highlights the functions available in the SAA7215 to reduce
the line flickering in graphics regions. During this demonstration, 2 graphics regions are
displayed. One with anti-flickering and one without. The contents of the bit map in the regions
is one that shows flickering without anti-flicker measures active. Video and audio decoding are
still active and visible during the demonstration.
Grab frame store to
OSD and scale
1
/
4
continuously location
A picture of the running video is grabbed and displayed
1
/
4
of its original size as a 16-bit, bit
map on a graphics plane. The picture data of an I or P picture is copied from a frame store to
SDRAM2 memory. During the copy the format of the data is converted from 4 : 2 : 0 format to
4 : 2 : 2 and converted into the graphics memory bit map format. Then the picture is displayed
on the screen.
The demonstration runs continuously. It displays the running video while a graphics region
1
/
4
of the screen size is in the top left corner. This graphics region is showing the I- and P-pictures
of the running video.
Scale
1
/
9
of 16 bit per
pixel graphics
location
This demonstration shows a 16 bit /pixel bit map in an OSD region on the screen. This picture
will be scaled to a factor
1
/
4
and
1
/
9
of the original size and displayed on the screen, after the
original is removed. The scaling is done by using a software routine that executes a DMU
program. During the demonstration, audio and video is playing.
Menu
During all the demonstrations, graphics regions with menu bars and buttons are visible for
control of the demonstration.
Scaling
Cut-out
Display of 16 : 9 video on a 4 : 3 display by cutting out 4 : 3 centres and panning/scanning.
This demonstration shows the pan/scan control via the left/right cursor keys. This function
would usually be under control from data in the transport stream.
Letter-box
Display of 16 : 9 video on a 4 : 3 display using letter-boxing.
Continuous
horizontal, vertical
steps
Allows a window to be selected using the cursor; the video will then be resized to fit the
selected window.
Video control
Video control
Scan, freeze, play, stop
Teletext
Teletext
Switch on and off of the VBI insertion by using a graphics region in VBI lines.
Debug
Event logging
User enabled event logging provided via the RS232 debug socket.
SCREEN
FEATURE
1999 May 05
16
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
6
DEVELOPMENT ENVIRONMENT
This chapter describes how you can develop your own
STB5660 application, what environment you need. What
hardware and software interface the system provides.
It answers the question what you need to start developing
your application. In addition it will tell you what you will
receive with the system that gets you on your way and
shorten development time and reduce the costs involved.
6.1
Summary of the STB5660 kit
When you receive the STB5660 development system it will
offer you a complete Set-Top Box system with all needed
documentation for development. This will give you a `plug
and play' solution to test and develop a system based on
this platform.
6.1.1
T
HE HARDWARE
This consists off a satellite front-end board, a front panel
with the display and IR-receiver, a main board, smart card
unit, the remote control and all cables needed to make the
necessary connections. On the main board you will find a
programmed EPROM and Flash memory.
6.1.2
T
HE SOFTWARE
You will receive not only the binary executable, but also all
source codes in C, header files and documentation files.
The software will include the complete Application
Programmers Interface (API) for all components on the
board, except for IEEE 1394, which will be a subset of the
standard. This API will offer a developers logical services
like audio, video, graphics, descrambling, etc. Together
with this you will get the Feature Demonstration
Application (FDS). This is an application that will show you
the key features of the system.
6.1.3
D
OCUMENTATION
Here you will find the user manual and programmers
reference for all major parts of the system like the
SAA7215 (AVGD chip), the SAA7214 (MPEG2
descrambler demultiplexer chip), and the satellite
front-end module (OM5718).
6.1.4
T
EST REPORTS
These are included to prove the system maturity. You will
see the reports of the API tests and the reports concerning
the extensive In-System-Test. The latter is done to prove
the chip-set in a complete system environment, a
customer like set-up, customer use based on our
experience with previous end-customers.
6.2
How to get started
The first day you receive the system you can hook up a
satellite dish or transport stream (DiSEqC or not), a TV,
connect power to the system and it will start with the FDS
program. This demo gives you a menu driven interface to
the system. You can test and experiment with all main
features of the system. See how fast the On-Screen
Display functions, try out the IEEE 1394 interface to a
similar board, look at window tests, try out teletext, etc.
This will give you an understanding of the system and its
possibilities.
6.3
Hardware interface with the STB5660
Besides the dish and the TV (SCART, SVHS, CCIR 656
YUV) there is an interface to IEEE 1394, SPDIF
(multi-channel audio decoder, to a PC via RS232 and
IEEE 1284 (Centronics), a debug socket (ROM emulator,
I/O), JTAG connector (boundary scan testing), smart-card
unit and a remote control.
To use a ROM emulator there is an I/O connector on the
main PCB where an extension board fits on the debug
connector. This extension gives you access to two
footprints for 1-Mbyte ROMs.
6.4
Software interface with the STB5660
In the following way you can interface to the system to
develop and debug your own application. Connect a PC
(or other development system) with a ROM emulator to
extension board on the debug connector, compile the
supplied source code and load the executable in the ROM
emulator. Connect the RS232 debug port to the PC and
run a terminal program, this will give you a debug screen.
If you don't have a ROM emulator you can use the parallel
port (IEEE 1284) of the Set-Top Box. There is a loader
program embedded in the EPROM of the system which
allows development without ROM emulator.
The maximum possible memory configuration consists of
a boot ROM (256 kbytes) with the loader program,
2 Mbytes fast DRAM as scratch memory, 32 kbytes NVM
for channel data storage, 4 Mbytes Flash memory to store
the program and 4 Mbytes SDRAM video memory.
The boot Chip Select can be switched between boot ROM
and Flash memory. Of course a smaller configuration is
possible, just leave the memory footprints open.
1999 May 05
17
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
6.5
Running `Hello world'
We have supplied a small program which is called `Hello
world' to help you start developing you own software.
How can we get the supplied `Hello world' application
running if we work with the a PC and a ROM emulator?
Connect the emulator to the STB5660 board via the
extension board. Then connect the PC RS232 port to the
STB5660 RS232 port. The program is running pSOS as
the read-time software. You need the pSOS libraries to
build the software. Compile the platform layer (drivers), the
Board Support Package and the `Hello world' program.
Load the executable in the ROM emulator and start the
program. You will see the `Hello world' text on the debug
window. You are now ready to start writing your own
application, with help from the programmers reference
documentation and user guide.
1999 May 05
18
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
7
CONTENTS LIST FOR STB5660
Table 6
Delivery list for the STB5660 system
ITEM
DESCRIPTION
1. Hardware
Front panel
OM5718
STB5660 main board
STB5660 main board
2. Software
Front panel driver
Satellite Software driver
SAA7214 driver
SAA7215 driver
TXT driver
Feature demonstration application
3. Documentation
Objective system specification long
SAA7214 IC specification
SAA7214 Driver Software Programmer's Reference
SAA7214 User manual
SAA7215 IC specification without registers medium
SAA7215 Driver Software Programmer's Reference
SAA7215 User manual
TDA8044 specification
87C524 specification
PDI1394L11 specification
PDI1394P11 specification
UDA1320 specification
TDA8004 specification
TDA8060 specification
TSA5512 specification
Hardware Definition Document of main board
STB5660 System Validation Report
User Guide of Feature demonstration application
Schematics OM5721, Front panel
Gerber files
Check list
4. Cables
RS232 cable, 1394 cable
SCART, power cable
1999 May 05
19
Philips Semiconductors
Product specification
STB5660 (Set-Top Box) STB concept
OM5721
8
DEFINITIONS
9
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
10 PURCHASE OF PHILIPS I
2
C COMPONENTS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
Purchase of Philips I
2
C components conveys a license under the Philips' I
2
C patent to use the
components in the I
2
C system provided the system conforms to the I
2
C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.
Philips Electronics N.V.
SCA
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Internet: http://www.semiconductors.philips.com
1999
64
Philips Semiconductors a worldwide company
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Tel. +31 40 27 82785, Fax. +31 40 27 88399
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Uruguay: see South America
Vietnam: see Singapore
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,
Tel. +381 11 62 5344, Fax.+381 11 63 5777
For all other countries apply to: Philips Semiconductors,
International Marketing & Sales Communications, Building BE-p, P.O. Box 218,
5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825
Argentina: see South America
Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,
Tel. +61 2 9805 4455, Fax. +61 2 9805 4466
Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213,
Tel. +43 1 60 101 1248, Fax. +43 1 60 101 1210
Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6,
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Belgium: see The Netherlands
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Bulgaria: Philips Bulgaria Ltd., Energoproject, 15th floor,
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Tel. +45 33 29 3333, Fax. +45 33 29 3905
Finland: Sinikalliontie 3, FIN-02630 ESPOO,
Tel. +358 9 615 800, Fax. +358 9 6158 0920
France: 51 Rue Carnot, BP317, 92156 SURESNES Cedex,
Tel. +33 1 4099 6161, Fax. +33 1 4099 6427
Germany: Hammerbrookstrae 69, D-20097 HAMBURG,
Tel. +49 40 2353 60, Fax. +49 40 2353 6300
Hungary: see Austria
India: Philips INDIA Ltd, Band Box Building, 2nd floor,
254-D, Dr. Annie Besant Road, Worli, MUMBAI 400 025,
Tel. +91 22 493 8541, Fax. +91 22 493 0966
Indonesia: PT Philips Development Corporation, Semiconductors Division,
Gedung Philips, Jl. Buncit Raya Kav.99-100, JAKARTA 12510,
Tel. +62 21 794 0040 ext. 2501, Fax. +62 21 794 0080
Ireland: Newstead, Clonskeagh, DUBLIN 14,
Tel. +353 1 7640 000, Fax. +353 1 7640 200
Israel: RAPAC Electronics, 7 Kehilat Saloniki St, PO Box 18053,
TEL AVIV 61180, Tel. +972 3 645 0444, Fax. +972 3 649 1007
Italy: PHILIPS SEMICONDUCTORS, Piazza IV Novembre 3,
20124 MILANO, Tel. +39 02 67 52 2531, Fax. +39 02 67 52 2557
Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku,
TOKYO 108-8507, Tel. +81 3 3740 5130, Fax. +81 3 3740 5077
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Printed in The Netherlands
545004/750/02/pp20
Date of release: 1999 May 05
Document order number:
9397 750 04764