Table 13-1 – Digilent 410-044-10P-KIT User Manual
Page 48
48
Spartan-3 Starter Kit Board User Guide
1-800-255-7778
UG130 (v1.1) May 13, 2005
Chapter 13: Expansion Connectors and Boards
R
Each port offers some ability to program the FPGA on the Spartan-3 Starter Kit Board. For
example, port A1 provides additional logic to drive the FPGA and Platform Flash JTAG
chain. Similarly, ports A2 and B1 provide connections for Master or Slave Serial mode
configuration. Finally, port B1 also offers Master or Slave Parallel configuration mode.
Each 40-pin expansion header, shown in
Figure 13-2
, uses 0.1-inch (100 mil) DIP spacing.
Pin 1 on each connector is always GND. Similarly, pin 2 is always the +5V DC output from
the switching power supply. Pin 3 is always the output from the +3.3V DC regulator.
The pinout information for each connector appears below. The tables include the
connections between the FPGA and the expansion connectors plus the signal names used
in the detailed schematic in
.
Table 13-1:
Expansion Connector Features
Connector
User I/O
SRAM
JTAG
Serial Configuration
Parallel Configuration
A1
32
Address
OE#, WE#
Data[7:0] to IC10 only
√
A2
34
√
B1
34
√
√
Figure 13-2:
40-pin Expansion Connector
Pin 2: VU
Pin 3: +3.3V
Pin 1: GND
Pin 39
Pin 40
Pin 4
Pin 39
Pin 40
+5V
UG130_c12_02_042504