T89C5115-RATIM datasheet(27/105 Pages) ATMEL

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T89C5115

4128A–8051–04/02

Examples

;*F*************************************************************************

;* NAME: api_rd_eeprom_byte

;* DPTR contain address to read.

;* Acc contain the reading value

;* NOTE: before execute this function, be sure the EEPROM is not BUSY

;***************************************************************************

api_rd_eeprom_byte:

MOV

EECON, #02h; map EEPROM in XRAM space

MOVX A, @DPTR

MOV

EECON, #00h; unmap EEPROM

ret

;*F*************************************************************************

;* NAME: api_ld_eeprom_cl

;* DPTR contain address to load

;* Acc contain value to load

;* NOTE: in this example we load only 1 byte, but it is possible upto

;* 128 bytes.

;* before execute this function, be sure the EEPROM is not BUSY

;***************************************************************************

api_ld_eeprom_cl:

MOV

EECON, #02h ; map EEPROM in XRAM space

MOVX @DPTR, A

MOVEECON, #00h; unmap EEPROM

ret

;*F*************************************************************************

;* NAME: api_wr_eeprom

;* NOTE: before execute this function, be sure the EEPROM is not BUSY

;***************************************************************************

api_wr_eeprom:

MOV

EECON, #050h

MOV

EECON, #0A0h

ret

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