Mvme147 Address Spaces - Motorola MVME147 Installation And Use Manual

Operating Instructions
Memory Maps
3
MC68030 Memory Map
FC (2-0)
0
1
2
3
4
5
6
7
7
3-4
There are two possible perspectives or points of view for memory
maps:
The mapping of all resources as viewed by the MC68030
(MC68030 memory map)
The mapping of onboard resources as viewed by VMEbus
masters (VMEbus memory map).
The MC68030 memory map is split into different address spaces by
the function codes. The MVME147 has different groups of devices
that respond depending on the address space as shown in
Table 3-2. MVME147 Address Spaces
Address Space
Reserved
User data
User program
Reserved
Reserved
Supervisor data
Supervisor program
CPU (IACK)
CPU (coprocessor)
MVME147 Devices that Respond
None (causes local time-out)
All except interrupt handler and MC68882
All except interrupt handler and MC68882
None (causes local time-out)
None (causes local time-out)
All except interrupt handler and MC68882
All except interrupt handler and MC68882
Interrupt handler
MC68882
Table 3-2.