Interrupt Acknowledge Map; Vmebus Memory Map; Vmebus Accesses To The Local Bus; Vmebus Short I/O Memory Map - Motorola MVME162FX Programmer's Reference Manual

0Software Support Considerations
24. Eight bytes are reserved for the printed wiring board (PWB)
25. Growth space (65 bytes) is reserved. This pads the structure
26. The final one byte of the area is reserved for a checksum (as

Interrupt Acknowledge Map

The local bus distinguishes interrupt acknowledge cycles from
other cycles by placing the binary value %11 on TT1-TT0. It also
specifies the level that is being acknowledged using TM2-TM0. The
interrupt handler selects which device within that level is being
acknowledged.

VMEbus Memory Map

This section describes the mapping of local resources as viewed by
VMEbus masters. Default addresses for the slave, master, and
GCSR address decoders are provided by the ENV command.

VMEbus Accesses to the Local Bus

The VMEchip2 includes a user-programmable map decoder for the
VMEbus to local bus interface. The map decoder allows you to
program the starting and ending address and the modifiers the
MVME162FX responds to.

VMEbus Short I/O Memory Map

The VMEchip2 includes a user-programmable map decoder for the
GCSR. The GCSR map decoder allows you to program the starting
address of the GCSR in the VMEbus short I/O space.
number assigned to the optional fourth IndustryPack d.
to an even 256 bytes.
defined in the MVME162Bug Debugging Package User's
Manual) for security and data integrity of the configuration
area of the NVRAM. This data is stored in hexadecimal
format.
Software Support Considerations
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