DS588PP1 - rev 0.4 April 11, 2002
C
O N F I D E N T I A L
Copyright
2002 Cirrus Logic Inc.
P
RELIMINARY
D
RAFT
www.cirrus.com
Overview
Features
Block
Diagram
Integrates all required components for a complete AVI
or ATAPI interface DVD drive (front-end) electronics
solution:
- RF amp
- Data channel
- Servo control processor
- DVD ECC (error correction code)
- CSS (content scramble system)
- ATAPI decoder
Reads DVD+RW, DVD-ROM, DVD-RW, CDDA, CD-
ROM, CD-R, CD-RW, VCD, and DVCD discs
Direct Audio/Video interface for DVD player
applications
ATAPI interface for game console and DVD loader
solutions
High-performance controller supports DVD disc speeds
up to 8x and CD-ROM disc speeds up to 40x
Partial Response Maximum Likelihood (PRML) data
channel
Servo Control Processor (SCP) on-chip
DVD navigation support
208-pin LQFP/EPAD packages
The CL-CS3712 is Cirrus Logic's high-integration, high-
performance ATAPI DVD drive manager. It integrates all
required components for a DVD loader for DVD players,
game consoles, and DVD-ROM drives. The CL-CS3712
includes an RF amp, servo control processor, data
channel, DVD ECC, CSS authorization, CD-ROM
decoder, and ATAPI interface.
The CL-CS3712 can be configured with an audio DAC
(digital-to-analog converter), external buffer memory (8- or
16-bit DRAM), a local micro-controller with its RAM and
ROM, and power drivers to create a complete DVD-ROM
electronics solution.
The CL-CS3712 supports DVD disc speeds up to 8x and
Ultra DMA host speeds up to 33.3 Mbytes/sec.
The RF signal is over-sampled by a high-speed ADC
(analog-to-digital converter). The timing loop is closed in
the digital domain with variable decimation and
interpolation used to provide the output samples to the
data recovery logic. A channel-quality logic circuit is
provided to allow parametric calibration.
The CL-CS3712 data channel supports partial response
maximum likelihood (PRML) data acquisition, providing
state-of-the-art data recognition in a noisy environment,
coming from the pick-up head.
CL-CS3712
TO POWER
DRIVERS
FROM
SENSORS
LOCAL
MICROCONTROLLER
ATAPI OR
MPEG
SAMPLE
RATE GEN
SPINDLE
CONTROL
HOST
INTERFACE
LAYERED ECC
& DVD ECC
C1/C2 ECC &
DE-INTERLEAVE
8/16
DEMOD
EFM
DEMOD
BUFFER
MEMORY
CHANNEL
QUALITY
BAC
CAPTURE
FROM
IV AMP
DPLL &
DATA CHNL
RF
ADC
LOW PASS
FILTER
SUM &
VGA
DACS
VGA
ADCS
SCP
SYNTHESIZER
RAM
SUB-Q READ
HEADER
SEARCH &
CHECKS
BUFFER
MANAGER
CSS
AUTHENTIFICATION
NAVIGATION
CSS
DESCRAMBLE
SUBCODE
DE-INTERLEAVE
CL-CS3712
MICRO
INTERFACE
Integrated AVI/ATAPI DVD
Drive Manager Datasheet
C
O N F I D E N T I A L
DS588PP1 - rev 0.4 April 11, 2002
Copyright
2002 Cirrus Logic Inc.
P
RELIMINARY
D
RAFT
www.cirrus.com
Features (Cont.)
Overview (Cont.)
RF Amp
Provides laser power control
Gain control in digital domain
Generates focus error and tracking signal
Provides RF signal for the data channel
Bypass for external RF amp applications
Data Channel
Digital PLL provides flexible control of center
frequency to support improved access times
Channel quality provided for parametric calibration
Channel data rates up to 210 Mbits/sec.
Flexible and error-tolerant channel sync mark
windowing
SCP (Servo Control Processor)
Includes a servo control processor for focus, tracking,
sled, and spindle servo loops
Significantly faster capture for focus and tracking
Effective in a wide range of parameter variations
Superior response to defects, shock, and vibration
Supports both CLV (constant linear velocity) and CAV
(constant angular velocity) modes
ECC
Real-time DVD ECC error correction
Real-time CD-ROM layered ECC error correction with
programmable number of sets of P-word and Q-word
corrections per sector (up to 64 total)
C1/C2 ECC and de-interleaving
Real-time subcode error correction in CD-DA
(compact disc digital audio) mode
Decoder
Supports hardware streaming operation
DVD navigation support
Supports ADB (audio data buffering)
Automatic target sector header search
Hardware sector header validity check
Supports high-speed Intel
- and Motorola
-type
microcontrollers
Supports nonmultiplexed and multiplexed address
and data buses
Host Interface
True real-time hardware/software ATAPI compatibility
Supports Ultra DMA: capable of synchronous DMA
data rates up to 33.3 Mbytes/sec.
Supports ATA PIO modes 3 and 4 transfers without
IOCHRDY
Host Interface (cont.)
Supports DMA modes 1 and 2
Hardware implementation of:
- ATAPI packet command
- ATAPI reset command
High-Performance
PIO/DMA ATAPI bus transfer rate:
- PIO modes 3 and 4, multiword DMA modes 1
and 2, and singleword DMA modes 1 and 2
Data transfer rate:
- CD-ROM CLV maximum 32
data rate with
25% overspeed capture
- CD-ROM CAV maximum 40
OD data rate
- DVD-ROM CLV maximum 6
data rate with
33% overspeed capture
- DVD-ROM CAV maximum 8
OD data rate
- DVD+R CLV max. 4x read
Buffer bandwidth:
- 55 Mbytes per second with 16-bit DRAM
Buffer Manager
Dual-port circular buffer control with access-priority
resolver
Supports streaming operation
Direct addressing of up to 4 Mbytes of DRAM
Supports variable buffer segmentation
Programmable timing control for SDRAM
Host overrun control
Supports 16-bit SDRAM
The CL-CS3712 servo control processor implements the
focus, tracking, sled, and spindle servo loops. An ADC is
provided to convert the focus and tracking error signal.
The outputs to the power drivers are linear DACs.
The CL-CS3712 supports real-time DVD ECC, CD-ROM
C1/C2, and layered ECC correction, which is
programmable for up to 64 P- and Q-word corrections per
sector. It also supports subcode R/W correction in CD-
DA (compact disc digital audio) mode.
The buffer manager controls the flow of data from the data
channel, through the ECC, and to either the host interface
or the serial audio channel. Data is stored and retrieved in
the external buffer memory using interleaved access
cycles. The buffer memory is implemented with SDRAM
devices. Up to 4 Mbytes of SDRAM can be directly
addressed by the CL-CS3712.
C
O N F I D E N T I A L
DS588PP1 - rev 0.4 April 11, 2002
Copyright
2002 Cirrus Logic Inc.
P
RELIMINARY
D
RAFT
www.cirrus.com
Features (Cont.)
Overview (Cont.)
Microcontroller Interface
Supports high-speed Intel
- and Motorola
-type
microcontrollers
Supports nonmultiplexed and multiplexed address
and data busses
Interrupt or polled microcontroller interface
Microcontroller access to six external switch settings
on the buffer bus
- Three-level power-down capability when idle,
automatic power-up when command is
received
Table of Contents
DS588PP1 - rev 0.4 April 11, 2002
C
O N F I D E N T I A L
Copyright
2002 Cirrus Logic Inc.
P
RELIMINARY
D
RAFT
www.cirrus.com
iii
System Block Diagrams .........................................................................................................................1
DVD-ROM ...................................................................................................................1
DVD PLAYER ..............................................................................................................1
Functional Decriptions ............................................................................................................................2
Decoder .....................................................................................................................................2
DVD Mode ....................................................................................................................2
CD Form .......................................................................................................................3
Data Channel ............................................................................................................................4
Servo Channel...........................................................................................................................6
Pickup/Sensor Interface ...............................................................................................6
Servo Control Processor ..............................................................................................6
Servo DACs..................................................................................................................6
Register Map ..........................................................................................................................................8
Pinout Information ...............................................................................................................................13
Pinout Diagram .......................................................................................................................13
Pin Decriptions ........................................................................................................................14
Package And Order Information ...........................................................................................................19
Package Information ...............................................................................................................19
LQFP Ordering Information .....................................................................................................21
C
O N F I D E N T I A L
DS588PP1 - rev 0.4 April 11, 2002
Copyright
2002 Cirrus Logic Inc.
System Block Diagrams
P
RELIMINARY
D
RAFT
www.cirrus.com
1
System Block Diagrams
DVD-ROM
DVD PLAYER
BUFFER
MEMORY
ROM
MC
SPINDLE
SLED/TRACK/FOCUS
POWER
DRIVERS
CL-CS3712
DATA
CHANNEL
RF AMP
SERVO
CONTROL
PROCESSOR
DVD/CD-ROM
ECC
CSS
A
T
API
3
HOST
INTERFACE
ATAPI
DECODER
BUFFER
MEMORY
ROM
MC
SPINDLE
SLED/TRACK/FOCUS
POWER
DRIVERS
CL-CS3712
DATA
CHANNEL
RF AMP
SERVO
CONTROL
PROCESSOR
DVD/CD-ROM
ECC
CSS
A
T
API
3
ROM
MC
IR
SENSOR
USER
CONTROL
LED
DISPLAY
AC-3
AUDIO
DECODER
MPEG2
VIDEO
DECODER
6 CHANNEL
AUDIO
NTSC/PAL
ENCODER
BUFFER MEMORY
(2 MBYTES)
6
DECODER
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