W78E516B-40 Просмотр технического описания (PDF) - Winbond

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W78E516B-40

8-BIT MICROCONTROLLER

Winbond 

W78E516B

The Algorithm of In-System Programming

START

Part 1:64KB APROM

procedure of entering

In-System Programming Mode

Enter In-System

No

Programming Mode ?

(conditions depend on

user's application)

Yes

Setting control registers

MOV CHPENR,#87H

MOV CHPENR,#59H

MOV CHPCON,#03H

Execute the normal application

program

Setting Timer (about 1.5 us)

and enable timer interrupt

Start Timer and enter idle Mode.

(CPU will be wakened from idle mode

by timer interrupt, then enter In-System

Programming mode)

END

CPU will be wakened by interrupt and

re-boot from 4KB LDROM to execute

the loader program.

Go

- 10 -

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