Signal Descriptions
MOTOROLA
MPC821FADS-DB USER’S MANUAL
5-29
128
MODEMEN
MODEMEN
O, L
Modem Enable signal. Unused on this board.
129
—
—
—
Not connected.
130
GND
GND
—
131
—
—
—
Not connected.
132
133
VCC
VCC
—
134
135
136
137
138
139
140
NOTE: I = Input, O = Output, L = Low, H = High, and X = Don’t Care.
Table 5-12. PM4 Interconnect Signals
PIN
MOTHERBOARD
SIGNAL
DAUGHTERBOARD
SIGNAL
INPUT/
OUTPUT
DESCRIPTION
1
GND
GND
—
2
D31
D31
I/O, X
Data line 31
3
GND
GND
—
4
D30
D30
I/O, X
Data line 30
5
GND
GND
—
6
D29
D29
I/O, X
Data line 29
7
GND
GND
—
8
D28
D28
I/O, X
Data line 28
9
GND
GND
—
10
11
12
D27
D27
I/O, X
Data line 27
13
GND
GND
—
14
D26
D26
I/O, X
Data line 26
Table 5-11. PM3 Interconnect Signals (Continued)
PIN
MOTHERBOARD
SIGNAL
DAUGHTERBOARD
SIGNAL
INPUT/
OUTPUT
DESCRIPTION
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Freescale Semiconductor, Inc.
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