Signal Descriptions
MOTOROLA
MPC821FADS-DB USER’S MANUAL
5-11
5.1.3 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 so that there is a short route to the PCB. As shown in Figure 5-1, the
connectors are set asymmetrically to prevent incorrect daughterboard insertion.
Figure 5-1. Motherboard Connectors Mechanical Assembly (Top Side)
1
1
1
1
PM1
PM4
PM2
PM3
17.49mm
11.14mm
30.19mm
93.98mm
71.12mm
46.3mm
13.68mm
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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