Renesas M16C/50 Series User Manual page 300

M16C/5L Group, M16C/56 Group
One-Shot Timer Mode
Timer Ai Mode Register (i = 0 to 4)
b7 b6 b5 b4 b3 b2 b1
0 1
MR1 (External trigger select bit) (b3)
This bit is enabled when the MR2 bit is 1 and bits TAiTGH to TAiTGL in the ONSF register or TRGSR
register are set to 00b (TAiIN pin input).
TCK1 and TCK0 (Count source select bit) (b7-b6)
These bits are enabled when the TCS3 bit or TCS7 bit in registers TACS0 to TACS2 is set to 0 (TCK0
to TCK1 enabled).
Set the PCLK0 bit in the PCLKR register to select f1TIMAB or f2TIMAB.
R01UH0127EJ0110 Rev.1.10
Sep 01, 2011
Symbol
b0
0
TA0MR to TA4MR
Bit Symbol Bit Name
TMOD0
Operation mode select bit
TMOD1
Pulse output function
MR0
select bit
External trigger select
MR1
bit
MR2 Trigger select bit
MR3 Set to 0 in one-shot timer mode
TCK0
Count source select bit
TCK1
Address
0336h to 033Ah
Function
b1 b0
1 0 : One-shot timer mode
0 : No pulse output
(TAiOUT pin functions as an I/O port)
1 : Pulse output
(TAiOUT pin functions as a pulse output
pin)
0 : Falling edge of input signal to TAiIN pin
1 : Rising edge of input signal to TAiIN pin
0 : TAiOS bit enabled
1 : Selected by bits TAiTGH and TAiTGL
b7 b6
0 0 : f1TIMAB or f2TIMAB
0 1 : f8TIMAB
1 0 : f32TIMAB
1 1 : fC32
15. Timer A
Reset Value
00h
RW
RW
RW
RW
RW
RW
RW
RW
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