Motorola Single Board Computer manual Installation Considerations, PMC/SBC 761/IPMC Mode Selection

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Hardware Preparation and Installation

PMC I/O Mode

2 4 6

J10

1 3 5

2 4 6

J17

1 3 5

J4 1 2 3 4 5 6 7 8

SBC I/O Mode

2 4 6

J10

1 3 5

2 4 6

J17

1 3 5

J4

1 2 3 4 5 6 7 8

For rear panel LAN, jumper entire 8 pin header on J4

PMC/SBC (761/IPMC) Mode Selection

There are five headers associated with the selection of the PMC or SBC mode: J4, J6 J10, J17 and J20. Three of these headers are responsible for secondary Ethernet I/O (J4, J10 and J17) to either the front panel (PMC mode), or to the P2 connector via J4 (SBC mode). The other two headers (J6 and J20) ensure proper routing of +/- 12V signal routing. The MVME5100 is set at the factory for front panel I/O: PMC mode (see Table 1-1). The SBC mode should only be selected when using one of the IPMC- 7xx modules in conjunction with the corresponding MVME7xx transition module.

Installation Considerations

The MVME5100 draws power from the VMEbus backplane connectors P1 and P2. Connector P2 is also used for the upper 16 bits of data in 32-bit transfers, and for the upper 8 address lines in extended addressing mode. The MVME5100 will not function properly without its main board connected to VMEbus backplane connectors P1 and P2.

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