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Z80 Datasheet(PDF) 225 Page - Zilog, Inc.

Part # Z80
Description  Z80 CPU PERIPHERALS
PDF  330 Pages
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Manufacturer  ZILOG [Zilog, Inc.]
Direct Link  http://www.zilog.com
Logo ZILOG - Zilog, Inc.

Z80 Datasheet(HTML) 225 Page - Zilog, Inc.

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UM008101-0601
Parallel Input/Output

PROGRAMMING SUMMARY
Overview
This section discusses the Load Interrupt Vector, Set Mode, Set Interrupt
control registers.
Load Interrupt Vector
Set Mode
When selecting Mode 3, the next word must set the I/O Register:
M1
M0
Mode
00
Output
0
1
Input
1
0
Bidirectional
1
1
Bit Control
V5
V4
D7
D6
D5
D4
D3
D0
D2
D1
V3
V2
V1
0
V1
V6
M1
M0
X
X
D7
D6
D5
D4
D3
D0
D2
D1
11
11



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