Renesas M16C/64A Series User Manual page 313

M16C/64A Group
17.3.4.1 Normal Processing
The timer increments at rising edges or decrements at falling edges on the TAjIN pin when input signals
to the TAjOUT (j = 2, 3) pin is high level.
TAjOUT
TAjIN
j = 2, 3
Figure 17.7 Normal Processing
17.3.4.2 Multiply-by-4 Processing
If the phase relationship is such that the input signal to the TAkIN pin goes high while the input signal to
the TAkOUT pin (k = 3, 4) is high, the timer increments at both rising and falling edges of the input
signal to pins TAkOUT and TAkIN. If the phase relationship is such that the input signal to the TAkIN pin
goes low while the input signal to the TAkOUT pin is high, the timer decrements at both rising and
falling edges of the input signal to pins TAkOUT and TAkIN.
Figure 17.8 Multiply-by-4 Processing
R01UH0136EJ0210 Rev.2.10
Jul 31, 2012
Increment Increment Increment Decrement Decrement Decrement
TAkOUT
Increment all edges
TAkIN
Increment all edges
k = 3, 4
Decrement all edges
Decrement all edges
17. Timer A
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