Preliminary – Rainbow Electronics T89C51CC02 User Manual

Page 40

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40

Rev.A - May 17, 2001

Preliminary

T89C51CC02

Figure 21. Example of Software Boot process

RESET

BLJB == 0

?

bit ENBOOT in AUXR1 register
is initialized with BLJB (Fuse bit).

USER APPLICATION

Hardware boot process

Software boot process

ENBOOT = 1
PC = F800h

FCON = F0h

FCON == 00h

?

SBV == FFh

?

EB == 0

?

DEFAULT BOOT LOADER

USER BOOT LOADER

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