NEC mPD780344 Series User Manual page 202

(2) Operated by CR5n transition
(a) CR5n value shifts from N to M before overflow of TM5n
Count clock
TM5n N N + 1 N + 2
CR5n N
TCE5n
H
INTTM5n
TO5n
(b) CR5n value shifts from N to M after overflow of TM5n
Count clock
TM5n N N + 1 N + 2
CR5n
N
TCE5n
H
INTTM5n
TO5n
(c) CR5n value shifts from N to M between two clocks (00H and 01H) after overflow of TM5n
Count clock
TM5n N N + 1 N + 2
CR5n N
TCE5n
H
INTTM5n
TO5n
Remark n = 0, 1
202
CHAPTER 8 8-BIT TIMER/EVENT COUNTERS 50, 51
Figure 8-11. Timing of Operation by CR5n Transition
FFH 00H 01H 02H
M
CR5n transition (N → M)
FFH 00H 01H 02H 03H
N
CR5n transition (N → M)
FFH 00H 01H 02H
N
CR5n transition (N → M)
User's Manual U15798EJ2V0UD
M M + 1 M + 2 FFH 00H 01H 02H
N N + 1 N + 2 FFH 00H 01H 02H
M
N N + 1 N + 2 FFH 00H 01H 02H
M M + 1 M + 2
M M + 1 M + 2
M M + 1 M + 2
M