Table of Contents
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Chapter 4: Service Information
Theory of Operation. 25
Z-80A System Operation. 26
Select Code Recognition. 26
Interrupt System. 27
Interface Reset. 27
Shared Memory Controller. 28
Addressing. 28
Read/Write Control. 28
Clock Circuits. 28
Memory Access Select Timing. 29
Memory Cycle Timing. 29
Hardware Registers. 31
Shared RAM. 32
Default Switches. 33
Baud Rate Multiplexer. 33
Line Drivers and Receivers. 33
Replacement Parts. 34
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Table of Contents
