at89c51snd1 ATMEL Corporation, at89c51snd1 Datasheet - Page 21

• Manufacturer Part Number: at89c51snd1
• Description: Mp3 Microcontrollers
• Manufacturer: ATMEL Corporation

Read Configuration and
Manufacturer Information
Program Configuration
Information
4241B–MP3–07/04
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•
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Note:
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Note:
__api_rd_manufacturer
__api_rd_bootloader_v
__api_wr_SSB_LEVEL0
__api_wr_code_page
__api_rd_device_id1
__api_rd_device_id2
__api_rd_device_id3
__api_wr_code_byte
Parameter Settings
The application program loads the column latches of the Flash then calls the
__api_wr_code_byte
“Program/Code Memory
Parameter Settings
Instruction: LCALL FFF0h.
Parameter Settings
Instruction: LCALL FFF0h.
At the complete API execution by the bootloader, the value to read is in the
api_value variable.
__api_rd_HSB
__api_set_BLJB
__api_rd_BSB
__api_rd_SBV
__api_rd_SSB
__api_clr_BLJB
__api_wr_BSB
__api_wr_SBV
__api_set_X2
__api_clr_X2
API_name
API_name
API_name
ersion
No special resources are used by the bootloader during this operation
No special resources are used by the bootloader during this operation.
0Bh
R1
02h
09h
R1
07h
07h
07h
00h
00h
00h
00h
0Fh
AT89C51SND1 UART Bootloader
or
Address of the first Byte to program in
” .
Address in Flash memory to write
R1
0Ah
0Ah
0Ah
0Ah
06h
06h
05h
__api_wr_code_page
the Flash memory
DPTR0
DPTR0
0000h
0001h
0002h
0000h
0000h
0001h
0002h
0003h
0000h
DPTR0
0008h
0008h
0004h
0004h
0000h
0001h
FFh
see
DPTR1
XRAM of the
first data to
Address in
program
DPTR1
DPTR1
x
x
x
x
x
x
x
datasheet
x
x
x
x
x
x
x
x
x
Number of Bytes
manufacturer id
value to write
value to write
Value to write
return version
return HSB
to program
return BSB
return SBV
return SSB
in
return id1
return id2
return id3
ACC
return
00h
01h
00h
01h
ACC
ACC
value
x
section
21