Timer A (Programmable Output Mode) - Renesas M16C/64A Series User Manual

M16C/64A Group
17.5.6

Timer A (Programmable Output Mode)

17.5.6.1 Changing the Operating Mode
The IR bit becomes 1 when setting a timer operating mode with any of the following:
•
Selecting PWM mode or programmable output mode after reset
•
Changing the operating mode from timer mode to PWM mode or programmable output mode
•
Changing the operating mode from event counter mode to PWM mode or programmable output
mode
To use the timer Ai interrupt (IR bit), set the IR bit to 0 by a program after the changes listed above
are made.
17.5.6.2 Stop While Counting
When setting the TAiS bit to 0 (count stopped) during pulse output, the following occur:
When the POFSi bit in the TAPOFS register is 0:
•
Counting stops.
•
When the TAiOUT pin is high, the output level goes low.
•
When the TAiOUT pin is low, the output level remains unchanged.
•
The IR bit remains unchanged.
When the POFSi bit in the TAPOFS register is 1:
•
Counting stops
•
When the TAiOUT pin output is low, the output level goes high.
•
When the TAiOUT pin output is high, the output level remains unchanged.
•
The IR bit remains unchanged.
R01UH0136EJ0210 Rev.2.10
Jul 31, 2012
17. Timer A
Page 299 of 800