Interrupt Sources - Renesas H8S Family Hardware Manual

11.5

Interrupt Sources

TMR_0, TMR_1, TMR_Y and TMR_X can generate three types of interrupts: CMIA, CMIB, and
OVI.
Table 11.3 shows the interrupt sources and priorities. Each interrupt source can be enabled or
disabled independently by interrupt enable bits in TCR or TCSR. Independent signals are sent to
the interrupt controller for each interrupt.
The CMIA and CMIB interrupts can be used as on-chip DTC activation interrupt sources.
Table 11.3 Interrupt Sources of 8-Bit Timers TMR_0, TMR_1, TMR_Y, and TMR_X
Channel Name
TMR_X CMIAX
CMIBX
OVIX
TMR_0 CMIA0
CMIB0
OVI0
TMR_1 CMIA1
CMIB1
OVI1
TMR_Y CMIAY
CMIBY
OVIY
Interrupt Source
TCORA_X compare-match
TCORB_X compare-match
TCNT_X overflow
TCORA_0 compare-match
TCORB_0 compare-match
TCNT_0 overflow
TCORA_1 compare-match
TCORB_1 compare-match
TCNT_1 overflow
TCORA_Y compare-match
TCORB_Y compare-match
TCNT_Y overflow
Section 11 8-Bit Timer (TMR)
Interrupt DTC
Flag Activation
CMFA Possible
CMFB Possible
OVF Not possible
CMFA Possible
CMFB Possible
OVF Not possible
CMFA Possible
CMFB Possible
OVF Not possible
CMFA Possible
CMFB Possible
OVF Not possible
Rev. 1.00 Mar. 12, 2008 Page 407 of 1178
Interrupt
Priority
High
Low
REJ09B0403-0100