Datasheet

M16C/6S Group Timer A
R01DS0201EJ0502 Rev.5.02 page 88 of 203
Dec 25, 2012
Bit name
Timer Ai mode register (i=0 to 4)
Symbol Address After reset
TA0MR to TA4MR 396
16 to 039A 16 00 16
Function
Bit symbol
b7 b6 b5 b4 b3 b2 b1 b0
Operation mode select bit
1 0 : One-shot timer mode
b1 b0
TMOD1
TMOD0
MR0
Pulse output function
select bit
0 : Pulse is not output
(TA
iOUT pin functions as I/O port)
1 : Pulse is output (Note 1)
(TAi
OUT pin functions as a pulse output pin)
MR2
MR1
MR3
Must be set to “0” in one-shot timer mode
0 0 : f
1 or f 2
0 1 : f 8
1 0 : f
1 1 : Do not set
32
b7 b6
TCK1
TCK0
Count source select bit
100
0 : TAiOS bit is enabled
1 : Selected by TAiTGH to TAiTGL bits
Trigger select bit
External trigger select
bit (Note 2)
0 : Falling edge of input signal to TAi IN pin (Note 3)
1 : Rising edge of input signal to TAi IN pin (Note 3)
Note 1: TA0 OUT pin is N-channel open drain output.
Note 2: Effective when the TAiGH and TAiGL bits of ONSF or TRGSR register are ‘00 2 ’ (TAi IN pin input).
Note 3: The port direction bit for the TAi
There are not TA2
IN and TA3 IN .
IN pin must be set to “0” (= input mode).
RW
RW
RW
RW
RW
RW
RW
RW
RW
Figure 1.12.9. TAiMR Register in One-shot Timer Mode