AT89C51ID2-RDTIM datasheet(139/159 Pages) ATMEL

139 / 159 page

139

AT89C51ID2

4289A–8051–09/03

PROGRAM DATA

PAGE

09h

Number of

byte to

program

Address of

the first byte

to program in

the Flash

memory

Address in

XRAM of the

first data to

program

ACC=0 : DONE

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 128bytes page. Hence, when ACC is

128, valid values of DPL are 00h, or, 80h.

PROGRAM X2 FUSE

0Ah

Fuse value

00h or 01h

0008h

XXh

none

Program X2 fuse bit with ACC

PROGRAM BLJB

FUSE

0Ah

Fuse value

00h or 01h

0004h

XXh

none

Program BLJB fuse bit with ACC

READ BOOT ID1

0Eh

XXh

DPL=00h

XXh

ACC=ID1

Read boot ID1

READ BOOT ID2

0Eh

XXh

DPL=01h

XXh

ACC=ID2

Read boot ID2

READ BOOT VERSION

0Fh

XXh

XXXXh

XXh

ACC=Boot_Version

Read bootloader version

Table 96. API Call Summary (Continued)

Command

DPTR0

DPTR1

Returned Value

Command Effect

READ MANUF ID

00h

XXh

0000h

XXh

ACC=Manufacturer Id Read Manufacturer identifier

READ DEVICE ID1

00h

XXh

0001h

XXh

ACC= Device Id 1

Read Device identifier 1

READ DEVICE ID2

00h

XXh

0002h

XXh

ACC=Device Id 2

Read Device identifier 2

READ DEVICE ID3

00h

XXh

0003h

XXh

ACC=Device Id 3

Read Device identifier 3

ERASE BLOCK

01h

XXh

DPH=00h

00h

ACC=DPH

Erase block 0

DPH=20h

Erase block 1

DPH=40h

Erase block 2

DPH=80h

Erase block 3

DPH=C0h

Erase block 4

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