AT83C51SND1C_03 ATMEL [ATMEL Corporation], AT83C51SND1C_03 Datasheet - Page 20

• Manufacturer Part Number: AT83C51SND1C_03
• Description: Single-Chip Flash Microcontroller with MP3 Decoder and Human Interface
• Manufacturer: ATMEL [ATMEL Corporation]

Figure 14. Hardware Boot Process Algorithm
Preventing Flash
Corruption
20
AT8xC51SND1C
The software process (boot loader) is detailed in the “Boot Loader Datasheet”
Document.
See Section “Reset Recommendation to Prevent Flash Corruption”, page 47.
Application
Standard Init
ENBOOT = 0
FCON = F0h
PC = 0000h
User’s
Prog Cond Init
Boot Loader
ENBOOT = 1
Hard Cond?
Prog Cond?
FCON = F0h
PC = F000h
BLJB = P?
ISP = L?
Atmel’s
RESET
Hard Cond Init
ENBOOT = 1
FCON = 00h
PC = F000h
4109E–8051–06/03