UPD75518 Datasheet, PDF(74/180 Page) NEC – 4 BIT SINGLE-CHIP MICROCOMPUTER

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UPD75518 Datasheet, PDF (74/180 Pages) NEC – 4 BIT SINGLE-CHIP MICROCOMPUTER

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TI0

ï£±

Internal ï£´

clock ï£²

ï£´

ï£³

Count pulse

(CP)

Modulo register

Fig. 4-27 Operation in the Count Operation Mode

CP

MPX

Count register

(T0)

INTT0

(IRQT0 set signal)

Clear

signal

ÂµPD75518(A)

Comparator

Match

TOUT

F/F

PTO0

Modulo register

(TMOD0)

Fig. 4-28 Timing of Count Operation

To CSI

(Only for channel 0)

n

Count register

TOUT F/F

01 2

Reset

nâ1 n 0 1 2

Match

nâ1 n 0 1 2 3 4

Match

Timer start specification

74

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