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Application:
HOST
HOST – HOST PROCESSOR SIDE
Interrupt Vector Register (IVR)
$3 Read/Write
Reset = $0F
Receive Byte Registers
$6, $7 Read Only
Reset = $xxxx
Transmit Byte Registers
$6, $7 Write Only
Reset = $xxxx
MOTOROLA
Figure C-29 Interrupt Vector Register (IVR)
15 14 13 12 11 10
Figure C-30 Receive Byte Registers
15 14 13 12 11 10
Figure C-31 Transmit Byte Registers
PROGRAMMING SHEETS
Exception vector number for use by MC68000
processor family vectored interrupts.
IV7
Host Receive Data (usually read by program)
9
8
H I G H B Y T E
Host Transmit Data (usually loaded by program)
9
8
H I G H B Y T E
Date:
Programmer:
Sheet 5 of 5
7
6
5
4
3
2
IV6
IV5
IV4
IV3
IV2
7
6
5
4
3
2
L O W B Y T E
7
6
5
4
3
2
L O W B Y T E
C - 33
1
0
IV1
IV0
1
0
1
0
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