NEC PD754144 - Manual (Page 158)

CHAPTER 6 PERIPHERAL HARDWARE FUNCTION
158 User’s Manual U10676EJ3V0UM
Figure 6-43. Timing of Count Operation
Remark m: Set value of timer counter module register (TMOD1)
n: Set value of timer counter modulo register (TMOD2)
Count pulse (CP)
Timer counter modulo
register (TMOD2)
Timer counter count
register (T2)
Timer counter count
register (T1)
TOUT F/F
0 1 2 n 255 0 1 n–1 n 0 1 2
n
Set
Timer start command
2
Timer counter modulo
register (TMOD1)
m
0 m–1 m 0
Match
Match