Programming summary, Overview, Load interrupt vector – Zilog Z08470 User Manual
Page 225: Set mode, Overview load interrupt vector set mode, Programming summary overview, Load interrupt vector set mode
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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
0
0
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
1
1
1
1