M34280E1FP View Datasheet(PDF) - MITSUBISHI ELECTRIC

Part Name

Description

Manufacturer

M34280E1FP

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS

MITSUBISHI ELECTRIC  

MITSUBISHI MICROCOMPUTERS

4280 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS

TIMERS

The 4280 Group has the programmable timer.

• Programmable timer

The programmable timer has a reload register and enables

the frequency dividing ratio to be set. It is decremented from a

setting value n. When it underflows (count to n + 1), a timer 1

underflow flag is set to “1,” new data is loaded from the reload

register, and count continues (auto-reload function).

FF16

n : Counter initial value

Count starts

Reload

n

1st underflow

Reload

2nd underflow

0016

Timer 1 underflow flag

n+1 count

Fig. 12 Auto-reload function

n+1 count

Time

A skip instruction is executed.

MITSUBISHI

10

ELECTRIC

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