Preparing the Board
http://www.motorola.com/computer/literature 1-19
1
IP Reset Mode (S5 Pin 3)
Segment 3 of switch S5 defines the IP controller model (IP1 or IP2) to be
emulated when the board comes up. With S5 segment 3 set to
ON (the
factory configuration), the board initializes in IP2 mode. With S5 segment
3 set to
OFF, the board initializes in IP1 mode.
In IP2 mode, IP resets occur only in response to a direct software write or
to a power-up reset; the IP reset control bit is not self-clearing.
In IP1 mode, the IP reset control bit clears itself after after a 1msec
interval. IP resets may occur in response to a software write, a power-up
reset, or a local bus reset. For details, refer to the Programmer’s Reference
Guide listed in “Related Documentation” in Appendix E.
ON OFF
4
1
S5
IP2 reset mode
(factory configuration )
2736 0004 (2-3)
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