AT89C51IC2_08 Datasheet, PDF (127/147 Pages) ATMEL Corporation – 8-bit Flash Microcontroller with 2-wire Interface

AT89C51IC2
Table 93. API Call Summary (Continued)
Command
R1
A
DPTR0
PROGRAM DATA
PAGE
Address of
Number of the first byte
09h
byte to
to program in
program
the Flash
memory
Fuse value
PROGRAM X2 FUSE 0Ah
00h or 01h
0008h
PROGRAM BLJB
FUSE
Fuse value
0Ah
00h or 01h
0004h
READ HSB
0Bh
XXh
XXXXh
READ BOOT ID1
0Eh
XXh
DPL = 00h
READ BOOT ID2
0Eh
XXh
DPL = 01h
READ BOOT VERSION 0Fh
XXh
XXXXh
DPTR1
Address in
XRAM of the
first data to
program
XXh
XXh
XXh
XXh
XXh
XXh
Returned Value
ACC = 0: DONE
none
Command Effect
Program up to 128 bytes in user Flash.
Remark: number of bytes to program is
limited such as the Flash write remains in a
single 128 bytes page. Hence, when ACC
is 128, valid values of DPL are 00h, or, 80h.
Program X2 fuse bit with ACC
none
ACC = HSB
ACC = ID1
ACC = ID2
ACC = Boot_Version
Program BLJB fuse bit with ACC
Read Hardware Byte
Read boot ID1
Read boot ID2
Read bootloader version
4301D–8051–02/08
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