UPD75208GF-XXX-3BE 查看數據表（PDF） - NEC => Renesas Technology

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UPD75208GF-XXX-3BE

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75208

5.3 BASIC INTERVAL TIMER

The basic interval timer has the following functions:

• Interval timer operation to generate reference time

• Watchdog timer application to detect inadvertent program loop

• Wait time select and count upon standby mode release

• Count contents read

Fig. 5-2 Basic Interval Timer Configuration

From Clock

Generator

fXX/2 5

Clear

fXX/2 7

fXX/2 9

fXX/212

MPX

Basic Interval Timer

(8-Bit Frequency Divider)

BT

Clear

Set BT Interrupt

Request Flag

IRQBT

Vectored

Interrupt

Request

Signal

3

BTM3 BTM2 BTM1 BTM0 BTM

Wait Release

Signal during

Standby Release

SET1*

4

8

Internal Bus

* Instruction execution

16

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