M16C65 Datasheet, PDF (364/829 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/60

Under development
M16C/65 Group
Preliminary Specification
This is a preliminary specification and is subject to change.
17. Timer A
17.4 Interrupts
Refer to individual operation examples for interrupt request generating timing.
Refer to 14.7 “Interrupt Control” for details of interrupt control. Table 17.18 lists Timer A Interrupt Related
Registers.
Table 17.18 Timer A Interrupt Related Registers
Address
0055h
0056h
0057h
0058h
0059h
Register Name
Timer A0 Interrupt Control Register
Timer A1 Interrupt Control Register
Timer A2 Interrupt Control Register
Timer A3 Interrupt Control Register
Timer A4 Interrupt Control Register
Register Symbol
TA0IC
TA1IC
TA2IC
TA3IC
TA4IC
After Reset
XXXX X000b
XXXX X000b
XXXX X000b
XXXX X000b
XXXX X000b
The IR bit in the TAiIC register may become 1 (interrupt requested) when the TMOD1 bit in the TAiMR
register is changed from 0 to 1 (change from timer mode or event counter mode to one-shot timer mode,
PWM mode, or programmable output mode). Make sure to follow the procedure below when setting the
TMOD1 bit to 1. Refer to 14.13 “Notes on Interrupts” as well.
(1)Set bits ILVL2 to ILVL0 in the TAiIC register to 000b (interrupt disabled).
(2)Set the TAiMR register.
(3)Set the IR bit in the TAiIC register to 0 (interrupt not requested).
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
Page 329 of 791