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Z80 Datasheet(PDF) 226 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) 226 Page - Zilog, Inc.

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<%27 2GTKRJGTCNU
7UGT /CPWCN
UM008101-0601
Parallel Input/Output

Set Interrupt Control
If the mask follows bit is high, the next control word written to the port
must be the mask:
In addition, the interrupt enable flip-flop of a port may be set or reset
without modifying the remainder of the interrupt control word. This is
accomplished by issuing the following command:
Used in
Enable
Int.
AND/
OR
High
Low
Masks
Follows
Mode3Only
01
11
MB7 MB6 MB5 MB4
MB3 MB2 MB1 MB0
XX
00
1
1
X
Enable
Int.



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