Memory Maps; Local Bus Memory Map; Normal Address Range - Motorola MVME167 Series User Manual

Memory Maps

There are two points of view for memory maps: 1) the mapping of all resources as
viewed by local bus masters (local bus memory map), and 2) the mapping of onboard
resources as viewed by VMEbus Masters (VMEbus memory map).

Local Bus Memory Map

The local bus memory map is split into different address spaces by the transfer type
(TT) signals. The local resources respond to the normal access and interrupt
acknowledge codes.

Normal Address Range

The memory map of devices that respond to the normal address range is shown in the
following tables. The normal address range is defined by the Transfer Type (TT)
signals on the local bus. On the MVME167, Transfer Types 0, 1, and 2 define the
normal address range.
Table 3-1. Local Bus Memory Map, is the entire map from $00000000 to $FFFFFFFF.
Many areas of the map are user-programmable, and suggested uses are shown in the
table. The cache inhibit function is programmable in the MMUs. The onboard I/O
space must be marked cache inhibit and serialized in its page table.
Table 3-2. Local I/O Devices Memory Map on page 3-5 further defines the map for the
local I/O devices.
MVME167/D3
Memory Maps
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