M38203M4 Datasheet, PDF (312/344 Pages) Mitsubishi Electric Semiconductor – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPENDIX
3.3 Control registers
Interrupt control register 1
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt control register 1 (ICON1) [Address 3E16]
B
Name
0 INT0 interrupt enable
bit
1 _{INT1 interrupt enable}
bit
2 ^{Serial I/O1 receive}
interrupt enable bit
3 Serial I/O1 transmit
interrupt enable bit
4 _{Timer X interrupt}
enable bit
5 Timer Y interrupt
enable bit
6 ^{Timer 2 interrupt}
enable bit
7 _{Timer 3 interrupt}
enable bit
Functions
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
At reset R W
0
0
0
0
0
0
0
0
Fig. 3.3.20 Structure of interrupt control register 1
Interrupt control register 2
b7 b6 b5 b4 b3 b2 b1 b0
0
Interrupt control register 2 (ICON2) [Address 3F16]
B
Name
0 CNTR0 interrupt
enable bit
1 CNTR1 interrupt
enable bit
2 Timer 1 interrupt
enable bit
3 INT2 interrupt enable
bit
4 INT3 interrupt enable
bit
5 Key input interrupt
enable bit
6 ^{Serial I/O2}
interrupt enable bit
7 Fix this bit to “0.”
Functions
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
At reset R W
0
0
0
0
0
0
0
0 00
Fig. 3.3.21 Structure of interrupt control register 2
3–28
3820 GROUP USER’S MANUAL