Motorola MVME2700 Series Servisní příručka stáhnout pdf (Strana 91)

Programming Considerations

http://www.motorola.com/computer/literature 2-7

Programming Considerations

Good programming practice dictates that only one MPU at a time have

control of the MVME2700 control registers. Of particular note are:

❏ Registers that modify the address map

❏ Registers that require two cycles to access

❏ VMEbus interrupt request registers

Figure 2-2. VMEbus Master Mapping

VMEBUS

11553.00 9609

VME A24

VME A16

VME A24

VME A16

VME A24

VME A16

VME A24

VME A16

PROGRAMMABLE

SPACE

PCI MEMORYPROCESSOR

PCI MEMORY

SPACE

PCI/ISA

MEMORY SPACE

PCI

I/O SPACE

MPC

RESOURCES

NOTE 1

NOTE 2

NOTE 3

ONBOARD

MEMORY

1. Programmable mapping done by Raven ASIC.

2. Programmable mapping performed via PCI Slave images in Universe II ASIC.

3. Programmable mapping performed via Special Slave image (SLSI) in Universe ASIC.

NOTES:

1 2 ... 86 87 88 89 90 91 92 93 94 95 96 ... 214 215

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Motorola MVME2700 Series Servisní příručka Strana 91