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Freescale Semiconductor, Inc.
Signal Descriptions
5.1.5 PM1 to PM4–Motherboard Connectors
These connectors, which connect to their mates on the motherboard, are 140-pin
interboard, male connectors manufactured by Molex. These connectors are arranged in a
square shape to provide the shortest PCB routes possible. As shown in Figure 5-1, the
connectors are not in a perfectly symmetrical shape. This prevents you from inserting the
daughterboard incorrectly.
1
46.3mm
PM3
11.14mm
PM2
PM4
30.19mm
1
17.49mm
71.12mm
1
13.68mm
Freescale Semiconductor, Inc...
1
PM1
93.98mm
Figure 5-1. Motherboard Connectors Mechanical Assembly
5-12
MPC823ADSDB USER’S MANUAL
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