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PIC16F87 датащи(PDF) 28 Page - Microchip Technology

номер детали PIC16F87
подробное описание детали  18/20/28-Pin Enhanced Flash MCUs with nanoWatt Technology
PDF  230 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F87 датащи(HTML) 28 Page - Microchip Technology

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PIC16F87/88
DS30487D-page 28
 2002-2013 Microchip Technology Inc.
REGISTER 3-1:
EECON1: EEPROM ACCESS CONTROL REGISTER 1 (ADDRESS 18Ch)
R/W-x
U-0
U-0
R/W-x
R/W-x
R/W-0
R/S-0
R/S-0
EEPGD
—
—
FREE
WRERR
WREN
WR
RD
bit 7
bit 0
bit 7
EEPGD: Program/Data EEPROM Select bit
1
= Accesses program memory
0
= Accesses data memory
bit 6-5
Unimplemented: Read as ‘0’
bit 4
FREE: EEPROM Forced Row Erase bit
1
= Erase the program memory row addressed by EEADRH:EEADR on the next WR command
0
= Perform write only
bit 3
WRERR: EEPROM Error Flag bit
1
= A write operation is prematurely terminated (any MCLR or any WDT Reset during normal
operation)
0
= The write operation completed
bit 2
WREN: EEPROM Write Enable bit
1
= Allows write cycles
0
= Inhibits write to the EEPROM
bit 1
WR: Write Control bit
1
= Initiates a write cycle. The bit is cleared by hardware once write is complete. The WR bit
can only be set (not cleared) in software.
0
= Write cycle to the EEPROM is complete
bit 0
RD: Read Control bit
1
= Initiates an EEPROM read, RD is cleared in hardware. The RD bit can only be set (not
cleared) in software.
0
= Does not initiate an EEPROM read
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’ S = Set only
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown



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