Datasheet

15
4266C–CAN–03/08
AT89C51CC03 UART Bootloader
Read Configuration
Information or
Manufacturer
Information
The flow described below allows the user to read the configuration or manufacturer information.
Requests from Host
Note: The field “Load Offset” is not used
Answers from
Bootloader
The bootloader answers with:
• ‘value’ & ‘.’ & ‘CR’ & ’LF’ when the value is programmed
• ‘X’ & ‘CR’ & ‘LF’ if the checksum is wrong
• ‘P’ & ‘CR’ & ‘LF’ if the Security is set
Command Name
Record
Type
Load
Offset
Record
Length Data[0] Data[1]
Read Manufacturer Code
05h x 02h
00h
00h
Read Family Code 01h
Read Product Name 02h
Read Product Revision 03h
Read SSB
07h
00h
Read BSB 01h
Read SBV 02h
Read EB 06h
Read HSB (Fuse bit) 0Bh 00h
Read Device ID1
0Eh
00h
Read Device ID2 01h
Read Bootloader version 0Fh 00h