Specifications
PCIe/104 and PCI/104-Express Specification Revision 3.0 February 17, 2015 Page 13
Table 2-4 Connector A, Type 2 Pin Assignments
1 USB_OC# PE_RST# 2 2 PE_RST# USB_OC# 1
3
3.3V 3.3V
44
3.3V 3.3V
3
5 USB_1p USB_0p 6 6 USB_0p USB_1p 5
4 PCIe x1
7 USB_1n USB_0n 8 8 USB_0n USB_1n 7
2 PCIe x4
9
GND GND
10 10
GND GND
9
2 USB 2.0
11 PEx1_1Tp PEx1_0Tp 12 12 PEx1_0Tp PEx1_1Tp 11
2 USB 3.0
13 PEx1_1Tn PEx1_0Tn 14 14 PEx1_0Tn PEx1_1Tn 13
2 SATA
15
GND GND
16 16
GND GND
15
1 LPC
17 PEx1_2Tp PEx1_3Tp 18 18 PEx1_3Tp PEx1_2Tp 17
1 SMB
19 PEx1_2Tn PEx1_3Tn 20 20 PEx1_3Tn PEx1_2Tn 19
xxx
Misc.
21
GND GND
22 22
GND GND
21
xxx
Pw r / Gn d
23 PEx1_1Rp PEx1_0Rp 24 24 PEx1_0Rp PEx1_1Rp 23
25 PEx1_1Rn PEx1_0Rn 26 26 PEx1_0Rn PEx1_1Rn 25
27
GND GND
28 28
GND GND
27
29 PEx1_2Rp PEx1_3Rp 30 30 PEx1_3Rp PEx1_2Rp 29
31 PEx1_2Rn PEx1_3Rn 32 32 PEx1_3Rn PEx1_2Rn 31
33
GND GND
34 34
GND GND
33
3 5 PEx 1 _ 1Clk p PEx 1 _ 0Clk p 3 6 3 6 PEx 1 _ 0Clk p PEx 1 _ 1Clk p 3 5
3 7 PEx 1 _ 1Clk n PEx 1 _ 0Clk n 3 8 3 8 PEx 1 _ 0Clk n PEx 1 _ 1Clk n 3 7
39
+5V_SB +5V_SB
40 40
+5V_SB +5V_SB
39
4 1 PEx 1 _ 2Clk p PEx 1 _ 3Clk p 4 2 4 2 PEx 1 _ 3Clk p PEx 1 _ 2Clk p 4 1
4 3 PEx 1 _ 2Clk n PEx 1 _ 3Clk n 4 4 4 4 PEx 1 _ 3Clk n PEx 1 _ 2Clk n 4 3
45
DIR PWRGOOD
46 46
PWRGOOD DIR
45
47 SMB_DAT PEx_x4_Clkp 48 48 PEx_x4_Clkp SMB_DAT 47
49 SMB_CLK PEx_x4_Clkn 50 50 PEx_x4_Clkn SMB_CLK 49
51 SMB_ALERT PSON# 52 52 PSON# SMB_ALERT 51
53
STK0 / WAKE# STK1 / PEG_ENA#
54 54
STK1 / PEG_ENA# STK0 / WAKE#
53
55 GND GND 56 56 GND GND 55
57
PEx4_1T(0)p PEx4_0T(0)p
58 58
PEx4_0T(0)p PEx4_1T(0)p
57
59
PEx4_1T(0)n PEx4_0T(0)n
60 60
PEx4_0T(0)n PEx4_1T(0)n
59
61 GND GND 62 62 GND GND 61
63
PEx4_1T(1)p PEx4_0T(1)p
64 64
PEx4_0T(1)p PEx4_1T(1)p
63
65
PEx4_1T(1)n PEx4_0T(1)n
66 66
PEx4_0T(1)n PEx4_1T(1)n
65
67 GND GND 68 68 GND GND 67
69
PEx4_1T(2)p PEx4_0T(2)p
70 70
PEx4_0T(2)p PEx4_1T(2)p
69
71
PEx4_1T(2)n PEx4_0T(2)n
72 72
PEx4_0T(2)n PEx4_1T(2)n
71
73 GND GND 74 74 GND GND 73
75
PEx4_1T(3)p PEx4_0T(3)p
76 76
PEx4_0T(3)p PEx4_1T(3)p
75
77
PEx4_1T(3)n PEx4_0T(3)n
78 78
PEx4_0T(3)n PEx4_1T(3)n
77
79 GND GND 80 80
GND GND 79
81
SATA_T1p SATA_T0p
82 82
SATA_T0p SATA_T1p
81
83
SATA_T1n SATA_T0n
84 84
SATA_T0n SATA_T1n
83
85 GND GND 86 86 GND GND 85
87
SSTX1p SSTX0p
88 88
SSTX0p SSTX1p
87
89
SSTX1n SSTX0n
90 90
SSTX0n SSTX1n
89
91 GND GND 92 92 GND GND 91
93
Reserved Reserved
94 94
Reserved Reserved
93
95
Reserved Reserved
96 96
Reserved Reserved
95
97 GND GND 98 98 GND GND 97
99
SATA_DET#1 SATA_DET#0
100 100
SATA_DET#0 SATA_DET#1
99
101
SATA_PWREN#1 SATA_PWREN#0
102 102
SATA_PWREN#0 SATA_PWREN#1
101
103 GND GND 104 104 GND GND 103
105
STK2 / SDVO_DAT LPC_CLK
106 106
LPC_CLK STK2 / SDV O_DA T
105
107 GND GND 108 108 GND GND 107
109
PEx4_1R(0)p PEx4_0R(0)p
110 110
PEx4_0R(0)p PEx4_1R(0)p
109
111
PEx4_1R(0)n PEx4_0R(0)n
112 112
PEx4_0R(0)n PEx4_1R(0)n
111
113 GND GND 114 114 GND GND 113
115
PEx4_1R(1)p PEx4_0R(1)p
116 116
PEx4_0R(1)p PEx4_1R(1)p
115
117
PEx4_1R(1)n PEx4_0R(1)n
118 118
PEx4_0R(1)n PEx4_1R(1)n
117
119 GND GND 120 120 GND GND
119
121
PEx4_1R(2)p PEx4_0R(2)p
122 122
PEx4_0R(2)p PEx4_1R(2)p
121
123
PEx4_1R(2)n PEx4_0R(2)n
124 124
PEx4_0R(2)n PEx4_1R(2)n
123
125 GND GND 126 126 GND GND 125
127
PEx4_1R(3)p PEx4_0R(3)p
128 128
PEx4_0R(3)p PEx4_1R(3)p
127
129
PEx4_1R(3)n PEx4_0R(3)n
130 130
PEx4_0R(3)n PEx4_1R(3)n
129
131 GND GND 132 132 GND GND 131
133
SATA_R1p SATA_R0p
134 134
SATA_R0p SATA_R1p
133
135
SATA_R1n SATA_R0n
136 136
SATA_R0n SATA_R1n
135
137 GND GND 138 138 GND GND 137
139
SSRX1p SSRX0p
140 140
SSRX0p SSRX1p
139
141
SSRX1n SSRX0n
142 142
SSRX0n SSRX1n
141
143 GND GND 144 144 GND GND 143
145
LPC_AD0 LPC_DRQ#
146 146
LPC_DRQ# LPC_A D0
145
147
LPC_AD1 LPC_SERIRQ#
148 148
LPC_SERIRQ# LPC_A D1
147
149 GND GND 150 150 GND GND 149
151
LPC_A D2 LPC_FRA ME#
152 152
LPC_FRAME# LPC_AD2
151
153
LPC_AD3 RTC_Battery
154 154
RTC_Battery LPC_AD3
153
155 GND GND 156 156 GND GND 155
Toward edge of board
Toward center of board
Bottom View Signal AssignmentTop View Signal Assignment
+5 Volts+5 Volts+12 Volts
+12 Volts
Bank 1Bank 2Bank 3
Toward edge of board
+5 Volts
Toward center of board
+5 Volts