z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 82

• Manufacturer Part Number: z80189
• Description: Z80180, Z8s180, Z8l180 Mpu Operation
• Manufacturer: ZiLOG Semiconductor

Interrupt Vector Low Register (IL: 33H)
Bit
Bit/Field
R/W
Reset
Note: R = Read W = Write X = Indeterminate ? = Not Applicable
Bit
Position
7
4
–
–
5
0
Bit/Field
IL7
?
R/W
–
00H
IL7
5
7
vector table can be relocated on 32 byte boundaries. IL is initialized to
00H
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.
during RESET.
R/W
R/W
N/A
R/W
00H
IL6
6
Value Description
R/W
00H
IL5
5
The IL register is an internal I/O register which is
programmed with the OUT0 instruction and can be read
using the IN0 instruction.
Interrupt source dependent code
4
3
Family MPU User Manual
2
?
?
?
UM005003-0703
1
Z8018x
0
67