AT89C51ID2-SMSIM ATMEL [ATMEL Corporation], AT89C51ID2-SMSIM Datasheet - Page 113

Manufacturer Part Number

AT89C51ID2-SMSIM

Description

8-bit Flash Microcontroller

Manufacturer

ATMEL [ATMEL Corporation]

Datasheet

1.AT89C51ID2-SMSIM.pdf (159 pages)

4289A–8051–09/03

Figure 44. Recommended EEPROM Data Write Sequence

Exec: MOVX @DPTR, A

EECON = 00h (EEE=0)

EEPROM Data Write

EEPROM Data Mapping

EECON = 02h (EEE=1)

EEPROM Mapping

Save & Disable IT

DPTR= Address

Last Byte

Data Write

ACC= Data

Sequence

to Load?

Cleared?

Restore IT

EEBusy

EA= 0

AT89C51ID2

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