Digilent Basys Board Rev.E - Manual (Page 11)

Digilent
Basys Reference Manual
www.digilentinc.com
Copyright Digilent, Inc. Page 11/12 Doc: 502-107
Expansion Connectors (6-pin headers)
The Basys board provides four 6-pin peripheral
module connectors. Each connector provides
Vdd, GND, and four unique FPGA signals.
Several 6-pin module boards that can attach to
this connector are available from Digilent,
including A/D converters, speaker amplifiers,
microphones, H-bridge amplifiers, etc. Please
see
www.digilentinc.com for more information.
FPGA Pin Definitions
The table below shows all pin definitions for the
Spartan-3E on the Basys board. Pins in grey
boxes are not available to the user
FPGA pin definition table color key
Grey Not available to user
Green User I/O devices
Yellow Data ports
Tan Pmod connector signals
Blue USB signals
Basys Spartan-3E pin definitions
Pin Signal Pin Signal Pin Signal Pin Signal Pin Signal Pin Signal
1 PROG 25 CA 49 VDDO-2 73 GND 97 PS2D 121 VDDO-0
2 LD7 26 AN3 50 GRN2 74 JD-3 98 NC 122 U-INT0
3 LD6 27 GND 51 GRN1 75 JD-1 99 GND 123 U-FLAGC
4 LD5 28 VDDO-3 52 GRN0 76 JC-3 100 VDDO-1 124 U-FLAGB
5 LD4 29 SW2 53 CLK2 77 JC-1 101 NC 125 U-FLAGA
6 SW7 30 VDDAUX 54 CLK1 78 NC 102 VDDAUX 126 U-IFCLK
7 LD3 31 NC 55 GND 79 VDDO-1 103 NC 127 GND
8 LD2 32 AN2 56 NC 80 VDDINT 104 U-SLWR 128 NC
9 VDDINT 33 AN1 57 MODE2 81 JA-1 105 U-SLRD 129 NC
10 SW6 34 AN0 58 JD-4 82 JA-3 106 U-SLCS 130 U-D7
11 GND 35 VS 59 JD-2 83 CG 107 NC 131 U-D6
12 SW5 36 SW1 60 MODE1 84 NC 108 TMS 132 U-D5
13 VDDO-3 37 GND 61 GND 85 JC-4 109 TDO 133 GND
14 LD1 38 SW0 62 MODE0 86 JC-2 110 TCK 134 U-D4
15 LD0 39 HS 63 DIN 87 JB-1 111 NC 135 U-D3
16 CB 40 INIT 64 VDDO-2 88 JB-3 112 U-PKTD 136 NC
17 CF 41 BTN3 65 VDDAUX 89 NC 113 U-FAD1 137 VDDAUX
18 SW4 42 VDDO-2 66 NC 90 GND 114 NC 138 VDDO-0
19 GND 43 BLUE1 67 RED2 91 JA-2 115 VDDINT 139 U-D2
20 CE 44 BLUE0 68 RED1 92 JA-4 116 U-FAD0 140 U-D1
21 CD 45 VDDINT 69 BTN0 93 JB-2 117 U-SLDE 141 NC
22 DP 46 GND 70 RED0 94 JB-4 118 GND 142 U-D0
23 CC 47 BTN2 71 CCLK 95 NC 119 NC 143 HSWAP
24 SW3 48 BTN1 72 DONE 96 PS2C 120 NC 144 TDI
Spartan 3E
FPGA
81
91
82
92
ESD protection
diodes
1
6-pin
header
2
3
4
5
6
JA
Short-circuit protection
resistors
VU
3.3V
JPA
Power
supply
jumper
1 6-pin
header 2
3
4
JB
1 6-pin
header 2
3
4
JC
1 6-pin
header 2
3
4
JD
87
93
88
94
77
86
76
85
75
59
74
58
Note
Every 6-pin
connector has a
power supply
jumper and ESD
diodes, although
they are only
shown for JPA.
Figure 18. Basys Pmod connector circuits