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W78E858 Datasheet(PDF) 9 Page - Winbond |
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W78E858 Datasheet(HTML) 9 Page - Winbond |
9 / 35 page W78E858 Publication Release Date: November 6, 2006 - 9 - Revision A7 mov dptr,#EEPROM_BASE+55h mov a,#aah movx @dptr,a mov dptr,#EEPROM_BASE+2ah mov a,#55h movx @dptr,a mov dptr,#EEPROM_BASE+55h mov a,#20h movx @dptr,a call busy_waiting ret ;----------------------------------------------------------------- eeprom_erase: mov dptr,#EEPROM_BASE+55h mov a,#aah movx @dptr,a mov dptr,#EEPROM_BASE+2ah mov a,#55h movx @dptr,a mov dptr,#EEPROM_BASE+55h mov a,#80h movx @dptr,a mov dptr,#EEPROM_BASE+55h mov a,#aah movx @dptr,a mov dptr,#EEPROM_BASE+2ah ;a5~a0 mov a,#55h movx @dptr,a mov dptr,#EEPROM_BASE+55h mov a,#10h movx @dptr,a call busy_waiting ret ;----------------------------------------------------------------- enable_protect: mov dptr,#EEPROM_BASE+55h mov a,#aah movx @dptr,a mov dptr,#EEPROM_BASE+2ah mov a,#55h movx @dptr,a mov dptr,#EEPROM_BASE+55h mov a,#a0h movx @dptr,a ret ;----------------------------------------------------------------- busy_waiting: $wait1: mov a,mxpsr jnb acc.7,$wait1 $wait0: mov a,mxpsr jb acc.7,$wait0 ret |
Similar Part No. - W78E858_06 |
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Similar Description - W78E858_06 |
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