Document Outline
- ByteBlaster Parallel Port Donwload Cable Data Sheet
Altera Corporation
299
ByteBlaster Parallel Port
Download Cable
February 1998, ver. 2.01
Data Sheet
A-DS-BYTE-02.01
Development
13
T
ools
Features
s
Allows PC users to perform the following functions:
Program MAX
9000 (including MAX 9000A), MAX 7000S, and
MAX 7000A devices
in-system via a standard parallel port
Configure FLEX
10K, FLEX 8000, and FLEX 6000 devices
in-circuit via a standard parallel port
s
Provides a fast and low-cost method for in-system programming
s
Downloads data from the MAX+PLUS
II development software
s
Interfaces with a standard 25-pin parallel port on PCs
s
Uses 10-pin circuit board connector, which is identical to that of the
BitBlaster
serial download cable
Functional
Description
The ByteBlaster
parallel port download cable (ordering code:
PL-BYTEBLASTER) is a hardware interface to a standard PC parallel port
(also known as an LPT port). This cable channels configuration data to
FLEX 10K, FLEX 8000, and FLEX 6000 devices, as well as programming
data to MAX 9000, MAX 7000S, and MAX 7000A devices. Because design
changes are downloaded directly to the device, prototyping is easy and
multiple design iterations can be accomplished in quick succession. See
Figure 1.
Figure 1. ByteBlaster Parallel Port Download Cable
B
YTE
B
LASTER
300
Altera Corporation
ByteBlaster Parallel Port Download Cable Data Sheet
Download Modes
The ByteBlaster cable provides two download modes:
s
Passive serial (PS) modeUsed for configuring FLEX 10K,
FLEX 8000, and FLEX 6000 devices
s
JTAG modeIndustry-standard Joint Test Action Group (JTAG)
boundary-scan test (BST) circuitry (compliant with IEEE Std.
1149.1-1990) implemented for configuring FLEX 10K or
programming MAX 9000, MAX 7000S, and MAX 7000A devices
ByteBlaster Connections
The ByteBlaster cable has a 25-pin male header that connects to the PC
parallel port, and a 10-pin female plug that connects to the circuit board.
Data is downloaded from the PCs parallel port through the ByteBlaster
download cable to the circuit board via the connections discussed in this
section.
1
To configure/program 3.3-V devices (e.g., FLEX 10KA and
MAX 7000A devices) using the ByteBlaster cable, connect the
cables
VCC
pin to a 5.0-V power supply and the device to a 3.3-V
power supply. FLEX 10KA and MAX 7000A devices have 5.0-V
tolerant inputs, so the ByteBlaster cables 5.0-V output will not
harm these 3.0-V devices. The pull-up resistors should be
connected to the 5.0-V power supply.
ByteBlaster Header & Plug Connections
The 25-pin male header connects to a parallel port with a standard parallel
cable. Table 1 identifies the pins and the download modes.
Table 1. ByteBlaster 25-Pin Header Pin-Outs
Pin
JTAG Mode
Signal Name
PS Mode
Signal Name
2
TCK
DCLK
3
TMS
nCONFIG
8
TDI
DATA0
11
TDO
CONF_DONE
13
NC
nSTATUS
15
GND
GND
18 to 25
GND
GND
Altera Corporation
301
ByteBlaster Parallel Port Download Cable Data Sheet
Development
13
T
ools
Figure 2 shows a schematic of the ByteBlaster download cable.
Figure 2. ByteBlaster Schematic
Note:
(1)
All resistors are 33
.
The 10-pin female plug connects to a 10-pin male header on the circuit
board containing the target device(s). Figure 3 shows the dimensions of
the female plug.
25-Pin Male Header
Connections
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1G
2G
74LS244
GND
VCC
R5
R6
R7
R1
R3
2,10
GND
VCC
GND
13
11
9
8
3
2
14
VCC
GND
(1)
(
1)
(1)
(1)
(1)
(
1)
(
1)
R4
R2
10-Pin Plug Connections
5
1
9
GND
4
3
7
7
10
12
18-25
15
302
Altera Corporation
ByteBlaster Parallel Port Download Cable Data Sheet
Figure 3. ByteBlaster 10-Pin Female Plug Dimensions
Dimensions are shown in inches. The spacing between pin centers is 0.1 inch.
Table 2 identies the 10-pin female plugs pin names for the
corresponding download mode.
1
The circuit board must supply V
CC
and ground to the
ByteBlaster cable.
0.250 Typ.
0.700 Typ.
0.425 Typ.
0.100 Sq.
1
2
3
4
5
6
7
8
9
10
0.025 Sq.
Color Strip
Table 2. ByteBlaster Female Plug's Pin Names & Download Modes
Pin
JTAG Mode
PS Mode
Signal Name
Description
Signal Name
Description
1
TCK
Clock signal
DCLK
Clock signal
2
GND
Signal ground
GND
Signal ground
3
TDO
Data from device
CONFIG_DONE
Configuration
control
4
VCC
Power supply
VCC
Power supply
5
TMS
JTAG state
machine control
nCONFIG
Configuration
control
6
NC
No connect
NC
No connect
7
NC
No connect
nSTATUS
Configuration
status
8
NC
No connect
NC
No connect
9
TDI
Data to device
DATA0
Data to device
10
GND
Signal ground
GND
Signal ground
Altera Corporation
303
ByteBlaster Parallel Port Download Cable Data Sheet
Development
13
T
ools
Circuit Board Header Connection
The ByteBlaster 10-pin female plug connects to a 10-pin male header on
the circuit board. The 10-pin male header has two rows of five pins, which
are connected to the devices programming or configuration pins. The
ByteBlaster cable receives power and downloads data via the male
header. Figure 4 shows the dimensions of a typical 10-pin male header.
Figure 4. 10-Pin Male Header Dimensions
Dimensions are shown in inches.
Operating
Conditions
The following tables summarize the absolute maximum ratings,
recommended operating conditions, and DC operating conditions for the
ByteBlaster cable.
ByteBlaster Cable Absolute Maximum Ratings
ByteBlaster Cable Recommended Operating Conditions
0.025 Sq.
0.235
0.100
Side View
0.100
Top View
Symbol
Parameter
Conditions
Min
Max
Unit
V
CC
Supply voltage
With respect to ground
7.0
V
V
I
DC input voltage
With respect to ground
7.0
V
Symbol
Parameter
Conditions
Min
Max
Unit
V
CC
Supply voltage, 5.0-V
operation
4.75
5.25
V
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