
Chapter 2: ByteBlaster II Specifications 2–3
ByteBlaster II Connections
© July 2008 Altera Corporation ByteBlaster II Download Cable User Guide
ByteBlaster II 10-Pin Header Connection
The 10-pin female plug connects to a 10-pin male header on the circuit board.
Figure 2–2 shows the dimensions of the female plug.
Table 2–3 identifies the 10-pin female plug signal names and the corresponding
programming mode.
5 nCE Cyclone chip enable — No connect — No connect
8 ASDI Active serial data in DATA0 Data to device TDI Data to device
11 CONF_DONE Configuration done CONF_DONE Configuration
done
TDO Data from device
13 DATAOUT Active serial data out nSTATUS Signal status — No connect
15 nVCC
Detect
— nVCC
Detect
— nVCC
Detect
—
18 to 25 GND Signal ground GND Signal ground GND Signal ground
Table 2–2. ByteBlaster II 25-Pin Header Pin-Outs (Part 2 of 2)
Figure 2–2. ByteBlaster II 10-Pin Female Plug Dimensions
0.250 Typ.
0.700 Typ.
0.425 Typ.
0.100 Sq.
10
9
8
7
6
5
4
3
2
1
0.025 Sq.
Dimensions are shown in inches. Spacing between pin centers is 0.1 inches.
Table 2–3. ByteBlaster II Female Plug Signal Names and Programming Modes (Part 1 of 2)
Pin
AS Mode PS Mode JTAG Mode
Signal Name Description Signal Name Description Signal Name Description
1 DCLK Clock signal DCLK Clock signal TCK Clock signal
2 GND Signal ground GND Signal ground GND Signal ground
3 CONF_DONE Configuration done CONF_DONE Configuration done TDO Data from device
4 VCC(TRGT) Target power supply VCC(TRGT) Target power supply VCC(TRGT) Target power
supply
5 nCONFIG Configuration control nCONFIG Configuration control TMS JTAG state
machine control
6 nCE Cyclone chip enable — No connect — No connect
7 DATAOUT Active serial data out nSTATUS Configuration status — No connect
8 nCS Serial configuration
device chip select
— No connect — No connect
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