W78E054D Datasheet, PDF (64/89 Pages) List of Unclassifed Manufacturers – 8-bit microcontroller

W78E054D/W78E052D Data Sheet
PGM
End of Programming ?
YES
NO
Setting Timer and enable Timer
interrupt for wake-up .
(50us for program operation)
Get the parameters of new code
(Address and data bytes)
through I/O ports, UART or
other interfaces.
Setting control registers for
programming:
MOV SFRAH,#ADDRESS_H
MOV SFRAL,#ADDRESS_L
MOV SFRFD,#DATA
MOV SFRCN,#21H
Ease 14K AP programming:
MOV ERPAGE,#01
MOV SFRCN,#22H
Read_Compay_ID
OV SFRCN,#0Bh
MOV CHPCON,#03h
Read_Device_ID
MOV SFRCN,#0Ch
MOV CHPCON,#03h
Read_VT
MOV SFRCN,#0Dh
MOV SFRAL,#01h
MOV SFRAH,#00h
MOV CHPCON,#03h
Read_Dist
.
MOV SFRCN,#0Eh
MOV SFRAL,#02h
MOV SFRAH,#00h
MOV CHPCON,#03h
.
Part 2:
Procedure of Updating
the 2KB APROM
Is currently in the
F02K BOOT Mode ?
- 64 -
Publication Release Date: Jun 9, 2015
Revision A13