Datasheet

PIC16F87/88

DS30487D-page 28  2002-2013 Microchip Technology Inc.

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