NEC 78K0 User Manual page 170

Count clock
TM5n
CR5n
FFH
TCE5n
INTTM5n
Remark n = 0, 1
170
CHAPTER 7 8-BIT TIMER/EVENT COUNTERS 50 AND 51
Figure 7-11. Interval Timer Operation Timing (2/2)
(b) When CR5n = 00H
t
Count clock
TM5n 00H 00H
CR5n 00H
TCE5n
INTTM5n
Interval time
(c) When CR5n = FFH
t
01H FEH
User's Manual U16227EJ2V0UD
00H
00H
FFH 00H
FFH
Interrupt acknowledged
Interval time
FEH FFH 00H
FFH
Interrupt
acknowledged