NEC PD78214 - Manual (Page 216)

187
Chapter 7 Timer/Counter Units
7
Fig. 7-91 PPG Output When CR20 = CR21
Remark ALV2 = 0
Fig. 7-92 PPG Output When CR20 = 00H
Remark ALV2 = 0
1
2
n n n
INTC20
INTC21
TO2
TM2
count value
n-1
0
n-1
2
1
0 0
Count period T
Pulse period = (n + 1)T
Pulse width = nT
T
1
2
n n n
INTC20
INTC21
TO2
TM2
count value
0
Pulse period = (n + 1)T
Pulse width
= 2/f
CLK