M38002M4 Datasheet, PDF (57/173 Pages) Mitsubishi Electric Semiconductor – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPLICATION
2.2 Timer
Interrupt request register 1
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request reigster 1 (IREQ1) [Address : 3C16]
B
Name
0 INT0 interrupt request bit
1 ^{INT1 interrupt request bit}
2 Serial I/O receive interrupt
request bit
Function
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
3 ^{Serial I/O transmit interrupt}
request bit
4 ^{Timer X interrupt request}
bit
5 ^{Timer Y interrupt request}
bit
6 ^{Timer 1 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
7 Timer 2 interrupt request bit ^{0 : No interrupt request}
1 : Interrupt request
T _{“0” is set by software, but not “1.”}
Fig. 2.2.6 Structure of Interrupt request register 1
At reset R W
0
T
0
T
0
T
0
T
0
T
0
T
0
T
0
T
Interrupt request register 2
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request reigster 2 (IREQ2) [Address : 3D16]
B
Name
Function
0 CNTR0 interrupt request bit
1 ^{CNTR1 interrupt request bit}
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
2 ^{INT2 interrupt request bit}
0 : No interrupt request
1 : Interrupt request
3 ^{INT3 interrupt request bit}
4 ^INT4 interrupt request bit
5 ^{INT5 interrupt request bit}
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
6 Nothing is allocated for these bits. These are write disabled bits.
7 ^{When these bits are read out, the values are “0.”}
T “0” is set by software, but not “1.”
At reset _{R W}
0
T
0
T
0
T
0
T
0
T
0
T
0
!
0
!
Fig. 2.2.7 Structure of Interrupt request register 2
3800 GROUP USER’S MANUAL
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