User`s manual

l/O Channel Slots

The I/O channel suppotts:

•

Refresh of system memory from channel or microprocessors

•

Selection of data accesses (either

or 16-bit)

• Interrupts

• 24-bit memory addresses (16MB)

• I/O wait-state generation

•

I/O address space hex 100 to hex 3FF

•

Open-bus Structure (allowing multiple micro-processors to

share the system’s resources, including memory)

• DMA channels

The pinouts of the expansion bus I/O channels are shown as below

and on the next page.

Figure 6-12:

B A

62-Pin Expansion

Bus l/O Channels

Chapter 6: Appendix