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PIC16F1847 Datasheet(PDF) 115 Page - Microchip Technology

Part # PIC16F1847
Description  18/20/28-Pin Flash Microcontrollers with nanoWatt XLP Technology
PDF  408 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F1847 Datasheet(HTML) 115 Page - Microchip Technology

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 2011 Microchip Technology Inc.
Preliminary
DS41453B-page 115
PIC16(L)F1847
11.6
Write Verify
Depending on the application, good programming
practice may dictate that the value written to the data
EEPROM or program memory should be verified (see
Example 11-6) to the desired value to be written.
Example 11-6 shows how to verify a write to EEPROM.
EXAMPLE 11-6:
EEPROM WRITE VERIFY
BANKSEL EEDATL
;
MOVF
EEDATL, W
;EEDATL not changed
;from previous write
BSF
EECON1, RD ;YES, Read the
;value written
XORWF
EEDATL, W
;
BTFSS
STATUS, Z
;Is data the same
GOTO
WRITE_ERR
;No, handle error
:
;Yes, continue



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