PIC18F6620 Microchip, PIC18F6620 Datasheet - Page 82

• Manufacturer Part Number: PIC18F6620
• Description: Microcontroller
• Manufacturer: Microchip

PIC18F6520/8520/6620/8620/6720/8720
REGISTER 7-1:
DS39609B-page 80
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
EECON1 REGISTER (ADDRESS FA6h)
bit 7
EEPGD: Flash Program/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 or calibration 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
0 = Perform write only
WRERR: Flash Program/Data EEPROM Error Flag bit
1 = A write operation is prematurely terminated
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. (Read takes one cycle. RD is cleared in hardware. The RD bit
0 = Does not initiate an EEPROM read
Legend:
R = Readable bit
- n = Value at POR
EEPGD
R/W-x
Note:
(cleared by completion of erase operation)
(any MCLR or any WDT Reset during self-timed programming in normal operation)
(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.)
can only be set (not cleared) in software. RD bit cannot be set when EEPGD = 1.)
When a WRERR occurs, the EEPGD or FREE bits are not cleared. This allows
tracing of the error condition.
R/W-x
CFGS
U-0
—
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