M16C30P_07 Datasheet, PDF (122/317 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/30 SERIES

M16C/30P Group
14. Timers
Timer Ai Mode Register (i=0 to 2)
b7 b6 b5 b4 b3 b2 b1 b0
0
10
Symbol
Address
After Reset
TA0MR to TA2MR 0396h to 0398h
00h
Bit Symbol
Bit Name
Function
RW
TMOD0 Operation Mode Select Bit b1 b0
RW
TMOD1
1 0 : One-shot timer mode
RW
Pulse Output Function Select 0 : Pulse is not output
Bit
MR0
(TAiOUT pin functions as I/O port)
1 : Pulse is output ⁽¹⁾
RW
(TAiOUT pin functions as a pulse output pin)
External Trigger Select
0 : Falling edge of input signal to TAiIN pin ⁽³⁾
MR1
Bit ⁽²⁾
1 : Rising edge of input signal to TAiIN pin ⁽³⁾
RW
Trigger Select Bit
0 : TAiOS bit is enabled
MR2
1 : Selected by TAiTGH to TAiTGL bits
RW
MR3 Set to “0” in one-shot timer mode
RW
Count Source Select Bit
b7 b6
TCK0
0 0 : f1 or f2 ⁽⁴⁾
RW
0 1 : f8
TCK1
1 0 : f32
RW
1 1 : fC32
NOTES :
1. TA0OUT pin is N-channel open drain output.
2. Effective w hen the TAiTGH and TAiTGL bits in the ONSF or TRGSR register are “00b” (TAiIN pin input).
3. The port direction bit for the TAiIN pin is set to “0” (= input mode).
4. Selected by PCLK0 bit in the PCLKR register.
Figure 14.11 TAiMR Register in One-Shot Timer Mode
Rev.1.22 Mar 29, 2007 Page 106 of 291
REJ09B0179-0122