Interrupt Sources - Renesas H8S/2111B Hardware Manual

10.9

Interrupt Sources

TMR_0, TMR_1, and TMR_Y can generate three types of interrupts: CMIA, CMIB, and OVI.
TMR_X can generate an ICIX interrupt. TMR_A can generate four types of interrupts, CMIA,
CMIB, OVI and ICIA. Table 10.7 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.
Table 10.7 Interrupt Sources of 8-Bit Timers TMR_0, TMR_1, TMR_Y, TMR_X TMR_B,
and TMR_A
Channel Name
TMR_0 CMIA0
CMIB0
OVI0
TMR_1 CMIA1
CMIB1
OVI1
TMR_Y CMIAY
CMIBY
OVIY
TMR_X ICIX
TMR_B, CMIAAB
TMR_A
CMIBAB
OVIAB
TMR_A ICIA
Note: * The interrupt sources for TMR_B and TMR_A are allocated to the same vector
addresses. The bits CMIEB, CMIEA, and OVIE in TCR register of TMR_B or TMR_A
should be set to 1.
Interrupt Source
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
Input capture
TCORA_A, TCORA_B
compare-match*
TCORB_A, TCORB_B
compare-match*
TCNT_A, TCNT_B overflow*
Input capture
Interrupt Flag
CMFA
CMFB
OVF
CMFA
CMFB
OVF
CMFA
CMFB
OVF
ICF
CMFA
CMFB
OVF
ICF
Rev. 1.00, 05/04, page 215 of 544
Interrupt
Priority
High
Low