M16C65 Datasheet, PDF (349/829 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/60

Under development
M16C/65 Group
Preliminary Specification
This is a preliminary specification and is subject to change.
17. Timer A
17.3.4.1 Normal Processing
The timer increments rising edges or decrements falling edges on the TAjIN pin when input signals on
the TAjOUT (j = 2, 3) pin is high level. Figure 17.7 shows Normal Processing.
TAjOUT
TAjIN
Increment Increment Increment Decrement Decrement Decrement
j = 2, 3
Figure 17.7 Normal Processing
17.3.4.2 Multiply-by-4 Processing
If the phase relationship is such that TAkIN pin goes high when the input signal on the TAkOUT pin (k =
3, 4) is high, the timer increments rising and falling edges on pins TAkOUT and TAkIN. If the phase
relationship is such that the TAkIN pin goes low when the input signal on the TAkOUT pin is high, the
timer decrements rising and falling edges on pins TAkOUT and TAkIN. Figure 17.8 shows Multiply-by-4
Processing.
TAkOUT
TAkIN
Increment all edges
Decrement all edges
k = 3, 4
Increment all edges
Figure 17.8 Multiply-by-4 Processing
Decrement all edges
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
Page 314 of 791