6 Pin Assignments
MVME51005E Single Board Computer Installation and Use (6806800A38B)
57
Note
PIN 130, 131, MEZZ1_L, MEZZ2_L, configures the board’s local bus frequency. If a
single mezzanine is attached to the board, MEZZ1_L will be pulled down on the board.
If a second mezzanine is attached on-top to the first, MEZZ2_L will be pulled down on
the board. This may cause the clock generation logic to set the local bus frequency to
83.33 MHz if necessary.
PCI Expansion Connector (J25) Pin Assignments
This connector is used to provide PCI/PMC expansion capability. The pin assignments for this
connector are as follows:
97
A10
A09
98
99
GND
GND
100
101
A08
A07
102
103
A06
A05
104
105
A04
A03
106
107
A02
A01
108
109
+3.3V
+3.3V
110
111
A00
CS_C0_L
112
113
CS_E0_L
GND
114
115
CS_C1_L
CS_E1_L
116
117
WE_L
RAS_L
118
119
GND
GND
120
121
CAS_L
+3.3V
122
123
+3.3V
DQMB0
124
125
DQMB1
SCL
126
127
SDA
A1_SPD
128
129
A0_SPD
MEZZ1_L
130
131
MEZZ2_L
GND
132
133
GND
SDRAMCLK1
134
135
SDRAMCLK3
+3.3V
136
137
SDRAMCLK4
SDRAMCLK2
138
139
GND
GND
140
Table 6-2. Memory Expansion Connector Pin Assignments (continued)
Pin
Assignment
Pin