M38203M4 Datasheet, PDF (110/344 Pages) Mitsubishi Electric Semiconductor – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPLICATION
2.2 Interrupts
Interrupt request register 2
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request register 2 (IREQ2) [Address 3D16]
B
Name
Functions
0 ^{CNTR0 interrupt}
request bit
0 : No interrupt request issued
1 : Interrupt request issued
1 ^{CNTR1 interrupt}
request bit
0 : No interrupt request issued
1 : Interrupt request issued
2 Timer 1 interrupt
request bit
3 ^{INT2 interrupt}
request bit
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
4 INT3 interrupt
request bit
0 : No interrupt request issued
1 : Interrupt request issued
5 Key input interrupt
request bit
6 ^{Serial I/O2}
interrupt request bit
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
7 Nothing is allocated. This bit cannot be written
to and is fixed to “0” at reading.
V : “0” can be set by software, but “1” cannot be set.
At reset R W
0
V
0
V
0
V
0
V
0
V
0
V
0
V
0 0×
Fig. 2.2.10 Structure of interrupt request register 2
2–24
3820 GROUP USER’S MANUAL