User's Guide

Board Bootup
MPC837xE-RDS, Rev. 1.0
Freescale Semiconductor 33
Preliminary, Subject to Change without Notice
CAUTION
Avoid touching areas of circuitry and connectors; static discharge can
damage circuits.
3.1 Board Jumper Settings
Figure 22 shows a partial top view of the MPC837xE-RDS with red outlines at jumper designators J7, J10,
and J12. A square pad indicates pin 1 of the part. Table 10 shows the default jumper settings.
Figure 22. Partial MPC837xE-RDS Top View
Table 10. Default Jumper Settings
Reference Default Jumper Setting
= Jumper
× = No Jumper
Description
J7 × Watchdog input for MAX6829. Default is no jumper.
J10 × 12V external power input for optional connector---X1 PCI Express.
J12 2–3 Select the reset configuration source (RST-CFG-SRC) for the MPC837xE.
Jumper 2-3 (default): 0000 Reset configuration word is loaded from
NOR Flash.
Jumper 1-2: 1111 Hard-coded option 7. Reset configuration word is
not loaded.