Interrupt Sources - Hitachi H8/3032 Series Hardware Manual

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8.5.3 Interrupt Sources

Each ITU channel can generate a compare match/input capture A interrupt, a compare match/input
capture B interrupt, and an overflow interrupt. In total there are 15 interrupt sources, all
independently vectored. An interrupt is requested when the interrupt request flag and interrupt
enable bit are both set to 1.
The priority order of the channels can be modified in interrupt priority registers A and B (IPRA
and IPRB). For details see section 5, Interrupt Controller.
Table 8-10 lists the interrupt sources.
Table 8-10 ITU Interrupt Sources
Interrupt
Channel Source
0 IMIA0
IMIB0
OVI0
1 IMIA1
IMIB1
OVI1
2 IMIA2
IMIB2
OVI2
3 IMIA3
IMIB3
OVI3
4 IMIA4
IMIB4
OVI4
Note: * The priority immediately after a reset is indicated. Inter-channel priorities can be changed
by settings in IPRA and IPRB.
Description
Compare match/input capture A0
Compare match/input capture B0
Overflow 0
Compare match/input capture A1
Compare match/input capture B1
Overflow 1
Compare match/input capture A2
Compare match/input capture B2
Overflow 2
Compare match/input capture A3
Compare match/input capture B3
Overflow 3
Compare match/input capture A4
Compare match/input capture B4
Overflow 4
253
Priority*
High
Low