R01UH0092EJ0110 Rev.1.10
Page 285 of 807
Jul 31, 2012
M16C/64C Group
17. Timer A
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.
b7
0
1
0
b6 b5 b4
b1
b2
b3
Symbol
TA0MR to TA4MR
Address
0336h to 033Ah
Reset Value
00h
b0
Function
Bit Symbol
Bit Name
RW
One-Shot Timer Mode
Timer Ai Mode Register (i = 0 to 4)
RW
b1 b0
1 0 : One-shot timer mode
Operation mode select bit
RW
TMOD1
TMOD0
Pulse output function
select bit
RW
MR0
0 : No pulse output
(TAiOUT pin functions as an I/O port)
1 : Pulse output
(TAiOUT pin functions as a pulse output
pin)
RW
MR1
External trigger select
bit
0 : Falling edge of input signal to TAiIN pin
1 : Rising edge of input signal to TAiIN pin
TCK0
MR3
RW
Set to 0 in one-shot timer mode
TCK1
RW
MR2
Trigger select bit
0 : TAiOS bit enabled
1 : Selected by bits TAiTGH and TAiTGL
RW
Count source select bit
b7 b6
0 0 : f1TIMAB or f2TIMAB
0 1 : f8TIMAB
1 0 : f32TIMAB
1 1 : fC32
Содержание M16C Series
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