BDM-610000075
Rev B
Chapter 3: Connecting the cpuModule
49
PCI/104-Express PCIe Bus Signals
For a complete description of the PCI/104-Express Bus Signals, consult the
PCI/104-Express & PCIe/104
Specification Version 2.01
from the PC/104 Embedded Consortium.
PCI Express x16 Link
The PCI Express x16 link on the PCI/104-Express connector can be used as a single x16, x8, x4, or x1 link. It cannot
be bifurcated into two x8 or x4 links. In order to reduce power and heat dissipation, the PCI Express x16 link
utilizes a Low Power PCI Express interface as described in the
PCI Express Architecture Mobile Graphics
Low-Power Addendum to the PCI Express Base Specification Revision 1.3
. It is therefore recommended that
any card that utilizes the PCIe x16 link is placed directly adjacent to the CPU.
105
SDVO_DAT/PENA
+
12 V
o
lt
s
SDVO_CLK
106
107
GND
GND
108
109
PEx16_0R(8)p
PEx16_0R(0)p
110
111
PEx16_0R(8)n
PEx16_0R(0)n
112
113
GND
GND
114
115
PEx16_0R(9)p
PEx16_0R(1)p
116
117
PEx16_0R(9)n
PEx16_0R(1)n
118
119
GND
GND
120
121
PEx16_0R(10)p
PEx16_0R(2)p
122
123
PEx16_0R(10)n
PEx16_0R(2)n
124
125
GND
GND
126
127
PEx16_0R(11)p
PEx16_0R(3)p
128
129
PEx16_0R(11)n
PEx16_0R(3)n
130
131
GND
GND
132
133
PEx16_0R(12)p
PEx16_0R(4)p
134
135
PEx16_0R(12)n
PEx16_0R(4)n
136
137
GND
GND
138
139
PEx16_0R(13)p
PEx16_0R(5)p
140
141
PEx16_0R(13)n
PEx16_0R(5)n
142
143
GND
GND
144
145
PEx16_0R(14)p
PEx16_0R(6)p
146
147
PEx16_0R(14)n
PEx16_0R(6)n
148
149
GND
GND
150
151
PEx16_0R(15)p
PEx16_0R(7)p
152
153
PEx16_0R(15)n
PEx16_0R(7)n
154
155
GND
GND
156
1. Signals marked with (#) are active low.
Table 32
PCIe/104 Type 1 Bus Signal Assignments (Top View)
1
Pin
Signal
Signal
Pin
Summary of Contents for BDM-610000075
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