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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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AT89C51CC02CA-RATUM 数据表(PDF) 32 Page - ATMEL Corporation |
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AT89C51CC02CA-RATUM 数据表(HTML) 32 Page - ATMEL Corporation |
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32 / 156 page  32 AT/T89C51CC02 4126J–CAN–05/06 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: ; Save and clear EA MOV EECON, #02h; map EEPROM in XRAM space MOVX A, @DPTR MOV EECON, #00h; unmap EEPROM ; Restore EA 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: ; Save and clear EA MOV EECON, #02h ; map EEPROM in XRAM space MOVX @DPTR, A MOVEECON, #00h; unmap EEPROM ; Restore EA ret ;*F************************************************************************* ;* NAME: api_wr_eeprom ;* NOTE: before execute this function, be sure the EEPROM is not BUSY ;*************************************************************************** api_wr_eeprom: ; Save and clear EA MOV EECON, #050h MOV EECON, #0A0h ; Restore EA ret |
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