Rainbow-electronics T89C51CC02 Uživatelský manuál stáhnout pdf (Strana 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

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 136 137

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Rainbow-electronics T89C51CC02 Uživatelský manuál Strana 43