Z8536 Cio Port Pins; Table 1-17. Z8536/Z85230 Access Registers; Table 1-18. Z8536 Cio Port Pins Assignment - Motorola MTX Series Programmer's Reference Manual

Board Description and Memory Maps
1
PCI I/O Address
0000 0840
0000 0841
0000 0842
0000 0843
0000 0844
0000 0845
0000 0846
0000 0847
0000 084F

Z8536 CIO Port Pins

Port Pin Signal Name
PA0 TM3_
PA1 DSR3_
PA2 RI3_
PA3 LLB3_
PA4 RLB3_
PA5 DTR3_
PA6 BRDFAIL
PA7 Reserved
PB0 TM4_
PB1 DSR4_
PB2 RI4_
PB3 LLB4_
PB4 RLB4_
1-30

Table 1-17. Z8536/Z85230 Access Registers

Function
Z85230: Port B (Serial Port 4) Control
Z85230: Port B (Serial Port 4) Data
Z85230: Port A (Serial Port 3) Control
Z85230: Port A (Serial Port 3) Data
Z8536 CIO: Port C's Data Register
Z8536 CIO: Port B's Data Register
Z8536 CIO: Port A's Data Register
Z8536 CIO: Control Register
Z85230/Z8536 Pseudo IACK
The assignment for the Port pins of the Z8536 CIO is as follows:

Table 1-18. Z8536 CIO Port Pins Assignment

Direction
Input
Input
Input
Output
Output
Output
Output
I/O
Input
Input
Input
Output
Output
Descriptions
Port 3 Test Mode.
Port 3 Data Set Ready
Port 3 Ring Indicator
Port 3 Local Loopback
Port 3 Remote Loopback
Port 3 Data Terminal Ready
Board Fail: When set will cause FAIL LED to be lit.
Reserved
Port 4 Test Mode
Port 4 Data Set Ready
Port 4 Ring Indicator
Port 4 Local Loopback
Port 4 Remote Loopback
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