UPD75518 NEC, UPD75518 Datasheet - Page 74

• Manufacturer Part Number: UPD75518
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

74
Modulo register
Count register
TI0
Count pulse
Internal
clock
TOUT F/F
(CP)
0
Reset
Timer start specification
MPX
Fig. 4-27 Operation in the Count Operation Mode
1
2
Fig. 4-28 Timing of Count Operation
CP
n – 1
Modulo register
Count register
n
Comparator
(TMOD0)
(T0)
Match
0
1
n
2
INTT0
(IRQT0 set signal)
Clear
signal
Match
n – 1
TOUT
n
F/F
Match
0
To CSI
(Only for channel 0)
1
2
3
PD75518(A)
PTO0
4