NEC PD78F9488 User Manual
Page 151
CHAPTER 7 8-BIT TIMERS 50, 60, AND 61
User’s Manual U15331EJ4V1UD
151
Figure 7-22. Timing of Carrier Generator Operation (When CR60 = N, CRH60 = M (M
> N))
TM60
count clock
TM60
count value
CR60
TCE60
INTTM60
M
00H
N
00H
01H
N
CRH60
M
N
00H
Carrier clock
N
00H
00H
N
M
00H
01H
L
L
00H
01H
L
00H
01H
L
00H
L
00H
01H
TM50
count value
CR50
TCE50
INTTM50
TM50
count clock
0
1
0
1
0
0
1
0
1
0
NRZB60
NRZ60
TO60
Carrier clock
Clear
Clear
Clear
Clear
Count start
Remark 00H
≤ N < M ≤ FFH, L = 00H to FFH