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IPMC7126E/7616E I/O Module Installation and Use (6806800A45B)
Chapter 3 Programming
22
2. On the IPMC712, pins PA0 through PA4, PA6, PA7, PB0 through PB4 are not used on the
Z8536 CIO.
ISA DMA Connections/Assignments
The following table shows the DMA connections/assignments between the PC97307 and the
PIB.
Table 3-9. Z8536 CIO Port Pins Assignment
Port Pin Signal Name Direction Descriptions
PA6 BRDFAIL Output Not used on module
PB6 FUSE Input Not used on module
PB7 ABORT_ Input Not used on module
PC1 Reserved I/O Not used on module
PC2 BASETYP0 Input Not used on module
PC3 BASETYP1 Input
Table 3-10. DMA Connection/Assignments
Chann
el Connection Level Usage
0 SCC W//REQA high Serial Port 3 RX
1 SCC
DTR//REQA
high Serial Port 3 TX
2SIO
DRQ2/DACK2
high User SIO configurable, suggested use is parallel port
3SIO
DRQ3/DACK3
high User SIO configurable, suggested use is parallel port
4 None PIB Internal DMA cascade
5 SCC W//REQB high Serial Port 4 RX
6 SCC
DTR//REQB
high Serial Port 4 TX
7 None