Owner's manual
Digilent
Basys Reference Manual
www.digilentinc.com
Copyright Digilent, Inc. Page 12/12 Doc: 502-107
Spartan 3E
FPGA
79
78
71
70
ESD protection
diodes
1
6-pin
header
2
3
4
5
6
JA
Resistors for short-
circuit protection
Power
supply
jumper
VU
3.3V
JPA
1
6-pin
header
2
3
4
JB
1
6-pin
header
2
3
4
JC
1
6-pin
header
2
3
4
JD
68
67
66
65
63
62
61
60
58
57
54
53
FPGA
The pinout for the Spartan 3E-100 FPGA in the VQ100 package is shown in the table below.
Basys FPGA Pin Assignments
Pin Function Pin Function Pin Function Pin Function Pin Function
1
PROG_B
21
V
AUX
41 VGA-HS 61 JC-3 81
GND
2 LD7 22 CC 42 MODE1/C 62 JC-2 82
3V3
3
LD6 23 CG 43 MODE0/C 63 JC-1 83 SPI-SS
4 LD5 24 CB 44
D0
64
GND
84 CLK2
5 LD4 25
3V3
45
3V3
65 JB-4 85 PS2C
6
V
INT
26 AN4 46
V
AUX
66 JB-3 86 PS2D
7
GND
27 AN3 47 VGA-G 67 JB-2 87
GND
8
3V3
28
V
INT
48 VGA-B 68 JB-1 88 SW7
9 LD3 29
GND
49 VGA-R 69 BTN0 89 SW6
10 LD2 30 BTN1 50
CCLK
70 JA-4 90 SW5
11 BTN3 31
3V3
51
V
AUX
71 JA-3 91 SW4
12 LD1 32 AN2 52
GND
72
GND
92 SW3
13 BTN2 33 AN1 53 JD-4 73
3V3
93
GND
14
GND
34 SPI-MOSI 54 JD-3 74
V
AUX
94 SW2
15 LD0 35 SPI-MISO 55
3V3
75
TMS
95 SW1
16 CE 36 CLK1 56
V
INT
76
TDO
96
V
AUX
17 CD 37
GND
57 JD-2 77
TCK
97
3V3
18 DP 38 SPI-SCK 58 JD-1 78 JA2 98 SW0
19
GND
39
MODE2
59
GND
79 JA1 99
TMS-EN
20
3V3
40 VGA-VS 60 JC-4 80
V
INT
100
TDI
6-pin header connector circuit diagram. ESD diodes
and power jumper shown for JA are present for the
other connectors but omitted from the drawing.