Rainbow Electronics T89C51CC02 - Manual (Page 43)

Rev.A - May 17, 2001 43
Preliminary
T89C51CC02
10.6. XROW Bytes
Table 17. Xrow mapping
SBV register
Software Boot Vector
Default value after erasing chip: FFh
NOTE:
Only accessed by the API or in the parallel programming mode.
Figure 22. SBV Register
EB register
EXTRA BYTE
Default value after erasing chip: FFh
NOTE:
TOnly accessed by the API or in the parallel programming mode.
Figure 23. EB Register
Mnemonic Description Default value Address
SBV Boot Vector Address F8h 01h
SSB Software Security Byte FFh 05h
EB Extra Byte FFh 06h
Copy of the Manufacturer Code 58h 30h
Copy of the Device ID#1: Family code D7h 31h
Copy of the Device ID#2:Memories size and
type
F7h 60h
Copy of the Device ID#3:Name and Revision FFh 61h
7 6 5 4 3 2 1 0
ADD 7 ADD 6 ADD 5 ADD 4 ADD 3 ADD 2 ADD 1 ADD 0
Bit Number Bit Mnemonic Description
7-0 ADD7:0 MSB of user boot loader address location
7 6 5 4 3 2 1 0
- - - - - - - -
Bit Number Bit Mnemonic Description
7-0 - User definition