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T83C51SND1-ROTIL Datenblatt(PDF) 27 Page - ATMEL Corporation

Teilenummer T83C51SND1-ROTIL
Bauteilbeschribung  Single Chip Microcontroller with MP3 Decoder and Man Machine Interface
PDF  60 Pages
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Hersteller  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

T83C51SND1-ROTIL Datenblatt(HTML) 27 Page - ATMEL Corporation

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T8xC51SND1
Rev. D – 15-Nov-01
8.9 In Application Programming
The IAP is based on several Application Program Interface routines (APIs) that may be
called by the user’s boot loader to allow programming of the FLASH memory.
The APIs are executed by calling the API_CALL function at address FFF0h and by
passing the API routine number in R1 register. Some other parameters may also be
passed in registers as detailed in Table 36.
Table 36. API Routines and Parameters
R1
Description
02h
PROGRAM DATA BYTE
Program a data in the FLASH memory at a given address.
Parameters
DPTR
Address of the byte to program.
ACC
Data to program.
Return
None.
09h
PROGRAM DATA PAGE
Program a page of data in the FLASH memory at a given page address.
Parameters
DPTR0
Address of the page to program.
DPTR1
Address in ERAM of the first data to program.
ACC
Number of bytes to program limited to 128.
Return
None.
05h
PROGRAM SOFTWARE SECURITY BYTE
Program SSB.
Parameters
DPL
00h
Program level 1. Disable FLASH programming.
01h
Program level 2. Disable FLASH programming & verifying.
Return
None.
06h
PROGRAM BOOT STATUS BYTE
Program BSB.
Parameters
DPL
00h
Select BSB programming.
ACC
Data to program in BSB.
Return
None.
06h
PROGRAM SOFTWARE BOOT VECTOR
Program SBV.
Parameters
DPL
01h
Select SBV programming.
ACC
Data to program in SBV.
Return
None.
06h
PROGRAM BOOT LOADER JUMP BIT
Program BLJB.
Parameters
DPL
04h
Select BLJB programming.
ACC
00h
Program BLJB.
01h
Erase BLJB.
Return
None.



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