Z80 datasheet(15/330 Pages) ZILOG

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Z80 CPU Peripherals

User Manual

List of Tables

UM008101-0601

List of Tables

Counter/Timer Channels

Table 1.

Channel Values ......... ......... ......... ........4

Table 2.

Channel Control Register . ......... ......... ........5

Table 3.

Interrupt Vector Register . ......... ......... ........7

Table 4.

Channel Select Truth Table ......... ......... .......13

Table 5.

Channel Control Register . ......... ......... .......19

Table 6.

Time Constant Register ... ......... ......... .......22

Table 7.

Interrupt Vector Register . ......... ......... .......23

Direct Memory Access

Table 8.

Maximum Transfer and Search Speeds (Burst and Continuous

Modes) ...... ......... ......... ......... .......57

Table 9.

Reduction in Z80 CPU Throughput per Kbaud

(Byte Mode Transfers) ... ......... ......... .......57

Table 10.

Events and Actions ...... ......... ......... .......62

Table 11.

Contents of Counters After DMA Stops Because of End-of-

Block (Transfer Operations) ........ ......... .......76

Table 12.

Contents of Counters After DMA Stops Due to Byte Match

(Search or Transfer/Search Operations) ........ .......76

Table 13.

DMA Status ... ......... ......... ......... .......90

Table 14.

Reinitialize Status Byte ... ......... ......... ......110

Table 15.

Control Byte Order ...... ......... ......... ......118

Table 16.

Sample DMA Program ... ......... ......... ......126

Table 17.

Receive Event Sequence . . ......... ......... ......139

Table 18.

Transmit Event Sequence . ......... ......... ......139

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