PIC18F2480 MICROCHIP [Microchip Technology], PIC18F2480 Datasheet - Page 108

• Manufacturer Part Number: PIC18F2480
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F2480/2580/4480/4580
REGISTER 7-1:
DS39637A-page 106
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
EECON1: DATA EEPROM CONTROL REGISTER 1
bit 7
EEPGD: Flash Program or Data EEPROM Memory Select bit
1 = Access Flash program memory
0 = Access data EEPROM memory
CFGS: Flash Program/Data EEPROM or Configuration Select bit
1 = Access configuration registers
0 = Access Flash program or data EEPROM memory
Unimplemented: Read as ‘0’
FREE: Flash Row Erase Enable bit
1 = Erase the program memory row addressed by TBLPTR on the next WR command (cleared
0 = Perform write only
WRERR: Flash Program/Data EEPROM Error Flag bit
1 = A write operation is prematurely terminated (any Reset during self-timed programming in
0 = The write operation completed
WREN: Flash Program/Data EEPROM Write Enable bit
1 = Allows write cycles to Flash program/data EEPROM
0 = Inhibits write cycles to Flash program/data EEPROM
WR: Write Control bit
1 = Initiates a data EEPROM erase/write cycle or a program memory erase cycle or write cycle
0 = Write cycle to the EEPROM is complete
RD: Read Control bit
1 = Initiates an EEPROM read
0 = Does not initiate an EEPROM read
Legend:
R = Readable bit
-n = Value at POR
EEPGD
R/W-x
Note:
by completion of erase operation)
normal operation, or an improper write attempt)
(The operation is self-timed and the bit is cleared by hardware once write is complete.
The WR bit can only be set (not cleared) in software.)
(Read takes one cycle. RD is cleared in hardware. The RD bit can only be set (not cleared)
in software. RD bit cannot be set when EEPGD = 1 or CFGS = 1.)
When a WRERR occurs, the EEPGD and CFGS bits are not cleared.
This allows tracing of the error condition.
R/W-x
CFGS
U-0
Preliminary
—
W = Writable bit
‘1’ = Bit is set
R/W-0
FREE
WRERR
R/W-x
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
WREN
R/W-0
 2004 Microchip Technology Inc.
x = Bit is unknown
R/S-0
WR
R/S-0
RD
bit 0