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7480

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

Renesas Electronics 

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MITSUBISHI MICROCOMPUTERS

7480/7481 GROUP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

FFFF16

T3

L

T2

T1

000016

TR TR

L

T1

TR

TR

T3

T2

Input signal from

INT0/INT1 pin

Output waveform

from CNTR0/CNTR1 pin

CNTR

CNTR

L : Initial value of TL H, TLL

TR : Timer interrupt request

CNTR : CNTR 0/CNTR1 interrupt request

(CNTR polarity selection bit “0” : falling edge active)

Fig. 23 Timing diagram in programmable waveform generation mode (when trigger selection bit = “1”)

FFFF16

L

000016

Input signal from

INT0/INT1 pin

Output waveform

from CNTR0/

CNTR1 pin

TR

TR

TR

L

L

L

CNTR

CNTR

L : One-shot pulse width

TR : Timer interrupt request

CNTR : CNTR0/CNTR1 interrupt request

CNTR

(CNTR polarity selection bit “0” : falling edge active)

Fig. 24 Timing diagram in programmable one-shot output mode

28

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