Zilog Z80180 Bedienungsanleitung Seite 82

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Z8018x
Family MPU User Manual
UM005003-0703
67
vector table can be relocated on 32 byte boundaries. IL is initialized to
00H during RESET.
INT/TRAP Control Register (ITC)
ITC is used to handle TRAP interrupts and to enable or disable the
external maskable interrupt inputs INT0
, INT1 and INT2.
Interrupt Vector Low Register (IL: 33H)
Bit 76543210
Bit/Field IL7 IL6 IL5 ?
R/W R/W R/W R/W
?
Reset 00H 00H 00H ?
Note: R = Read W = Write X = Indeterminate ? = Not Applicable
Bit
Position Bit/Field R/W Value Description
7
5IL75 R/W The IL register is an internal I/O register which is
programmed with the OUT0 instruction and can be read
using the IN0 instruction.
4
0 ? N/A Interrupt source dependent code
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