Motorola MTX series Programmer's Reference Guide

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Board Description and Memory Maps
1
Z8536 CIO Port Pins
The assignment for the Port pins of the Z8536 CIO is as follows:
Table 1-17. Z8536/Z85230 Access Registers
PCI I/O Address Function
0000 0840 Z85230: Port B (Serial Port 4) Control
0000 0841 Z85230: Port B (Serial Port 4) Data
0000 0842 Z85230: Port A (Serial Port 3) Control
0000 0843 Z85230: Port A (Serial Port 3) Data
0000 0844 Z8536 CIO: Port C’s Data Register
0000 0845 Z8536 CIO: Port B’s Data Register
0000 0846 Z8536 CIO: Port A’s Data Register
0000 0847 Z8536 CIO: Control Register
0000 084F Z85230/Z8536 Pseudo IACK
Table 1-18. Z8536 CIO Port Pins Assignment
Port Pin Signal Name Direction Descriptions
PA0 TM3_ Input Port 3 Test Mode.
PA1 DSR3_ Input Port 3 Data Set Ready
PA2 RI3_ Input Port 3 Ring Indicator
PA3 LLB3_ Output Port 3 Local Loopback
PA4 RLB3_ Output Port 3 Remote Loopback
PA5 DTR3_ Output Port 3 Data Terminal Ready
PA6 BRDFAIL Output Board Fail: When set will cause FAIL LED to be lit.
PA7 Reserved I/O Reserved
PB0 TM4_ Input Port 4 Test Mode
PB1 DSR4_ Input Port 4 Data Set Ready
PB2 RI4_ Input Port 4 Ring Indicator
PB3 LLB4_ Output Port 4 Local Loopback
PB4 RLB4_ Output Port 4 Remote Loopback

Motorola MTX series Specifications

General

Brand	Motorola
Model	MTX series
Category	Portable Radio
Language	English