IP Reset Mode (S5 Pin 3) on Motorola MVME162P4 VME Embedded Controller

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.

Note: Model Number: MVME162P-344SE, Characteristics: 32MHz 68040, 16MB SDRAM, 2 SIO, 4 DMA IP, SCSI/Ethernet is used on Universal UIC HSP4797L Hitachi Sanyo TCM-X100 P.C.B. Mount 6300901030