75
3819 Group USER’S MANUAL
2. APPLICATION
MITSUBISHI MICROCOMPUTER
3819 Group
2.2 Timer
Fig. 2.2.7 Structure of Interrupt request register 1
Fig. 2.2.8 Structure of Interrupt request register 2
Interrupt request register 1
b7 b6 b5 b4 b3 b2 b1 b0
B
Function
At reset
RW
0
1
2
3
0
Interrupt request register 1 (IREQ1) [Address:3C16]
Name
INT0 interrupt request bit
INT1/ZCR interrupt request bit
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
Serial I/O 1 interrupt request
bit
Serial I/O automatic transfer
interrupt request bit
q
T
4
5
6
7
0
Serial I/O 2 interrupt request
bit
Timer 1 interrupt request bit
0 : No interrupt request
1 : Interrupt request
Serial I/O 3 interrupt request
bit
Timer 2 interrupt request bit
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
T
T "0" is set by software, but not "1."
INT2 interrupt request bit
Remote control/counter
overflow interrupt request bit
q
Interrupt request register 2
b7 b6 b5 b4 b3 b2 b1 b0
b
Function
At reset
RW
0
1
2
3
0
Interrupt request reigster 2 (IREQ2) [Address:3D16]
Name
Timer 3 interrupt request bit
Timer 4 interrupt request bit
Timer 5 interrupt request bit
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
Timer 6 interrupt request bit
T
5
6
7
0
0 : No interrupt request
1 : Interrupt request
Nothing is allocated for this bit. This is a write disabled bit.
When this bit is read out, the value is "0."
FLD blanking interrupt
request bit
FLD digit interrupt request bit
q
INT4 interrupt request bit
A-D conversion interrupt
request bit
q
0 : No interrupt request
1 : Interrupt request
T
T "0" is set by software, but not "1."
4
0
0 : No interrupt request
1 : Interrupt request
INT3 interrupt request bit
T
0
T