P1 Expansion Board Connector Pin Assignment

The following table describes the GX3700 expansion board P1pin mapping to the front panel user connectors J1-J4, and FPGA pins:

Expansion Board Connector
Front Panel User Connector
FPGA pin Description
FPGA pin Name
Remark
P1-82
J1-1
Flex Diff 1P
AG22
 
P1-84
J1-35
Flex Diff 1N
AH22
 
P1-83
J1-2
Flex Diff 2P
AG19
 
P1-81
J1-36
Flex Diff 2N
AF19
 
P1-80
J1-3
Flex Diff 3P
AH21
 
P1-78
J1-37
Flex Diff 3N
AH20
 
P1-77
J1-4
Flex Diff 4P
AD18
 
P1-79
J1-38
Flex Diff 4N
AE19
 
P1-74
J1-5
Flex Diff 5P
AG18
 
P1-76
J1-39
Flex Diff 5N
AH19
 
P1-75
J1-6
Flex Diff 6P
AE18
 
P1-73
J1-40
Flex Diff 6N
AF17
 
P1-72
J1-7
Flex Diff 7P
AH18
 
P1-70
J1-41
Flex Diff 7N
AH17
 
P1-71
J1-8
Flex Diff 8P
AE17
 
P1-69
J1-42
Flex Diff 8N
AF16
 
P1-68
J1-9
Flex Diff 9P
AG16
 
P1-66
J1-43
Flex Diff 9N
AH16
 
P1-65
J1-10
Flex Diff 10P
AD16
 
P1-67
J1-44
Flex Diff 10N
AE16
 
P1-64
J1-11
Flex Diff 11P
AG15
Dedicated Clock Input
P1-62

 
J1-45
Flex Diff 11N
AH15
Dedicated Clock Input
P1-63
J1-12
Flex Diff 12P
AD13
 
P1-61
J1-46
Flex Diff 12N
AE13
 
P1-58
J1-13
Flex Diff 13P
AG13
Dedicated Clock Input
P1-60

 
J1-47
Flex Diff 13N
AH14
Dedicated Clock Input
P1-59
J1-14
Flex Diff 14P
AD12
 
P1-57
J1-48
Flex Diff 14N
AE12
 
P1-54
J1-15
Flex Diff 15P
AG12
 
P1-56
J1-49
Flex Diff 15N
AH13
 
P1-53
J1-16
Flex Diff 16P
AF10
 
P1-55
J1-50
Flex Diff 16N
AF11
 
P1-50
J1-17
Flex Diff 17P
AH11
 
P1-52
J1-51
Flex Diff 17N
AH12
 
P1-51
J1-18
Flex Diff 18P
AE9
 
P1-49
J1-52
Flex Diff 18N
AF9
 
P1-46
J1-19
Flex Diff 19P
AG10
 
P1-48
J1-53
Flex Diff 19N
AH10
 
P1-47
J1-20
Flex Diff 20P
AF8
 
P1-45
J1-54
Flex Diff 20N
AE8
 
P1-44
J1-21
Flex Diff 21P
AG9
 
P1-42
J1-55
Flex Diff 21N
AH8
 
P1-43
J1-22
Flex Diff 22P
AE6
 
P1-41
J1-56
Flex Diff 22N
AF6
 
P1-38
J1-23
Flex Diff 23P
AG7
 
P1-40
J1-57
Flex Diff 23N
AH7
 
P1-39
J1-24
Flex Diff 24P
AE5
 
P1-37
J1-58
Flex Diff 24N
AF5
 
P1-34
J1-25
Flex Diff 25P
AG6
 
P1-36
J1-59
Flex Diff 25N
AH6
 
P1-35
J1-26
Flex Diff 26P
AF2
 
P1-33
J1-60
Flex Diff 26N
AG1
 
P1-30
J1-27
Flex Diff 27P
AH4
 
P1-32
J1-61
Flex Diff 27N
AH5
 
P1-29
J1-28
Flex Diff 28P
AE2
 
P1-31
J1-62
Flex Diff 28N
AF1
 
P1-28
J1-29
Flex Diff 29P
AG4
 
P1-26
J1-63
Flex Diff 29N
AH3
 
P1-25
J1-30
Flex Diff 30P
AD1
 
P1-27
J1-64
Flex Diff 30N
AE1
 
P1-24
J1-31
Flex Diff 31P
AG3
 
P1-22
J1-65
Flex Diff 31N
AH2
 
P1-23
J1-32
Flex Diff 32P
AC2
 
P1-21
J1-66
Flex Diff 32N
AC1
 
P1-A,C
J1-34,68
GND
 
Power
P1-B
J1-33,67
User 3.3V
 
Power
P1-86
J2-1
FlexIO33
AH23
Routed to Expansion as Flex Diff 33P
P1-85
J2-2
FlexIO34
AF20
Routed to Expansion as Flex Diff 34N
P1-88
J2-3
FlexIO35
AH24
Routed to Expansion as Flex Diff 33N
P1-87
J2-4
FlexIO36
AE20
Routed to Expansion as Flex Diff 34P
P1-90
J2-5
FlexIO37
AG25
Routed to Expansion as Flex Diff 35P
P1-89

 
J2-6
FlexIO38
AE21
Routed to Expansion as Flex Diff 36P
P1-92

 
J2-7
FlexIO39
AH25
Routed to Expansion as Flex Diff 35N
P1-91
J2-8
FlexIO40
AF21
Routed to Expansion as Flex Diff 36N
P1-94

 
J2-9
FlexIO41
AH26
Routed to Expansion as Flex Diff 37P
P1-93

 
J2-10
FlexIO42
AD22
Routed to Expansion as Flex Diff 38P
P1-96

 
J2-11
FlexIO43
AG27
Routed to Expansion as Flex Diff 37N
P1-95
J2-12
FlexIO44
AE22
Routed to Expansion as Flex Diff 38N
P1-98
J2-13
FlexIO45
AH27
Routed to Expansion as Flex Diff 39P
P1-97
J2-14
FlexIO46
AG24
Routed to Expansion as Flex Diff 40P
P1-100

 
J2-15
FlexIO47
AF26
Routed to Expansion as Flex Diff 39N
P1-099
J2-16
FlexIO48
AF23
Routed to Expansion as Flex Diff 40N
P1-102

 
J2-17
FlexIO49
AE23
Routed to Expansion as Flex Diff 41P
P1-101
J2-18
FlexIO50
AF24
Routed to Expansion as Flex Diff 42N
P1-104

 
J2-19
FlexIO51
AD24
Routed to Expansion as Flex Diff 41N
P1-103
J2-20
FlexIO52
AE24
Routed to Expansion as Flex Diff 42P
P1-106
J2-21
FlexIO53
AB1
 
P1-105
J2-22
FlexIO54
B1
 
P1-108
J2-23
FlexIO55
AB2
 
P1-107
J2-24
FlexIO56
C1
 
P1-110
J2-25
FlexIO57
AE4
 
P1-109
J2-26
FlexIO58
D1
 
P1-112
J2-27
FlexIO59
AD6
 
P1-111
J2-28
FlexIO60
D2
 
P1-114
J2-29
FlexIO61
AE7
 
P1-113
J2-30
FlexIO62
E1
 
P1-116
J2-31
FlexIO63
AD7
 
P1-115
J2-32
FlexIO64
E2
 
P1-A,C

 
J2-34-66,68
GND
 
Power
P1-B
J2-33,67
User 3.3V
 
Power
P1-179
J3-1
FlexIO65
AA18
 
P1-177
J3-2
FlexIO66
Y17
 
P1-175
J3-3
FlexIO67
AB17
 
P1-173
J3-4
FlexIO68
AC17
 
P1-171
J3-5
FlexIO69
AB16
 
P1-169
J3-6
FlexIO70
AC16
 
P1-167
J3-7
FlexIO71
Y15
 
P1-165
J3-8
FlexIO72
AA15
 
P1-163
J3-9
FlexIO73
Y14
 
P1-161
J3-10
FlexIO74
Y13
 
P1-159
J3-11
FlexIO75
AA13
 
P1-157
J3-12
FlexIO76
AB13
 
P1-155
J3-13
FlexIO77
AA1
 
P1-153
J3-14
FlexIO78
Y2
 
P1-151
J3-15
FlexIO79
Y1
 
P1-149
J3-16
FlexIO80
W2
 
P1-147
J3-17
FlexIO81
W1
 
P1-145
J3-18
FlexIO82
V3
 
P1-143
J3-19
FlexIO83
V1
 
P1-141
J3-20
FlexIO84
U3
 
P1-139
J3-21
FlexIO85
T2
 
P1-137
J3-22
FlexIO86
N2
 
P1-135
J3-23
FlexIO87
L2
 
P1-133
J3-24
FlexIO88
L1
 
P1-131
J3-25
FlexIO89
K2
 
P1-129
J3-26
FlexIO90
K1
 
P1-127
J3-27
FlexIO91
J1
 
P1-125
J3-28
FlexIO92
H2
 
P1-123
J3-29
FlexIO93
H1
 
P1-121
J3-30
FlexIO94
G2
 
P1-119
J3-31
FlexIO95
G1
 
P1-117
J3-32
FlexIO96
 
 
P1-A,C
J3-34-66,68
GND
 
Power
P1-D
J3-33,67
User 5V
 
Power
P1-118
J4-1
FlexIO97
AC7
 
P1-120
J4-2
FlexIO98
AB7
 
P1-122
J4-3
FlexIO99
AC8
 
P1-124
J4-4
FlexIO100
AB8
 
P1-126
J4-5
FlexIO101
AH9
 
P1-128
J4-6
FlexIO102
AD9
 
P1-130
J4-7
FlexIO103
AC9
 
P1-132
J4-8
FlexIO104
AB9
 
P1-134
J4-9
FlexIO105
AA9
 
P1-136
J4-10
FlexIO106
Y9
 
P1-138
J4-11
FlexIO107
AE10
 
P1-140
J4-12
FlexIO108
AC10
 
P1-142
J4-13
FlexIO109
AA10
 
P1-144
J4-14
FlexIO110
Y10
 
P1-146
J4-15
FlexIO111
AE11
 
P1-148
J4-16
FlexIO112
AC11
 
P1-150
J4-17
FlexIO113
AB11
 
P1-152
J4-18
FlexIO114
Y11
 
P1-154
J4-19
FlexIO115
AF12
 
P1-156
J4-20
FlexIO116
AC12
 
P1-158
J4-21
FlexIO117
Y18
 
P1-160
J4-22
FlexIO118
AD19
 
P1-162
J4-23
FlexIO119
AC19
 
P1-164
J4-24
FlexIO120
AB19
 
P1-166
J4-25
FlexIO121
AA19
 
P1-168
J4-26
FlexIO122
Y19
 
P1-170
J4-27
FlexIO123
AC20
 
P1-172
J4-28
FlexIO124
AB20
 
P1-174
J4-29
FlexIO124
AG21
 
P1-176
J4-30
FlexIO124
AD21
 
P1-178
J4-31
FlexIO124
AC21
 
P1-180
J4-32
FlexIO124
AB21
 
P1-A,C
J4-34-66,68
GND
 
Power
P1-D
J4-33,67
User 5V
 
Power
P1-1,3,5,7,9
N/A
2.5V
 
Power
P1-2,4,6,8,10
N/A
VCC_IO
 
VCC I/O of the I/O banks of FPGA used on expansion board. Selectable on the GX3700 carrier by jumper as 1.2V, 2.5V or 3.3V
P1-193,195, 197, 199, 201
N/A
1.2V
 
Power
P1-205,207
N/A
+12V
 
Power
P1-208
N/A
-12V
 
Power
P1-194
N/A
MClr
 
Input, Master Clear
P1-198
 
PSpr0
 
Do Not Use
P1-200
 
PSpr1
 
Do Not Use
P1-202
 
PSpr2
 
Do Not Use
P1-204
 
PSpr3
 
Do Not Use
P1-184
 
PbID0
 
Output, Piggy Back ID. Pull up on carrier
P1-186
 
PbID1
 
Output, Piggy Back ID. Pull up on carrier
P1-188
 
PbID2
 
Output, Piggy Back ID. Pull up on carrier
P1-200
 
PbID3
 
Output, Piggy Back ID. Pull up on carrier
P1-189
 
FSpr0
L22
Output, Spare. Can be used as Function ID
P1-187
 
FSpr1
J16
Output, Spare. Can be used as Function ID
P1-185
 
FSpr2
J15
Output, Spare. Can be used as Function ID
P1-183
 
FSpr3
J14
Output, Spare. Can be used as Function ID

 

Notes for Expansion Board P1 connector:

1.    Maximum 1A per pin.

2.    PSpr[3..0] are reserved. Should be connected to ground using 1K-50K resistors.

3.    PbID[3..0] are used to identify the expansion board. Leave pins unconnected for logic ‘1’ or connect to ground for logic ‘0’. The GX3700 software driver can read these pins to identify the specific expansion board installed.

4.    FSpr[3..0] are spare pins connected to the user FPGA. Should be connected to ground or 3.3V using 1K-50K resistors if not used in the design. Can also be used as an additional identification field.

5.    MClr is a Master Clear input to the Expansion board. It is active high and is asserted by the controller at power-up or by a software command at any time.

6.    The Flex I/O signals must never be driven more than VCC_IO. If higher voltage logic is used in the Expansion board design, these signals must be protected.

7.    During the user FPGA configuration phase, the Flex I/O pins have a weak pull-up that may cause an un-intentional condition in the Expansion board. Pull-down resistors should be used where necessary.