dspic33fj128mc204 Microchip Technology Inc., dspic33fj128mc204 Datasheet - Page 76

• Manufacturer Part Number: dspic33fj128mc204
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

DS70291C-page 74
REGISTER 5-1:
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15
bit 14
bit 13
bit 12-7
bit 6
bit 5-4
bit 3-0
Note 1: These bits can only be reset on POR.
R/SO-0
WR
U-0
—
2: All other combinations of NVMOP<3:0> are unimplemented.
(1)
WR: Write Control bit
1 = Initiates a Flash memory program or erase operation. The operation is self-timed and the bit is
0 = Program or erase operation is complete and inactive
WREN: Write Enable bit
1 = Enable Flash program/erase operations
0 = Inhibit Flash program/erase operations
WRERR: Write Sequence Error Flag bit
1 = An improper program or erase sequence attempt or termination has occurred (bit is set
0 = The program or erase operation completed normally
Unimplemented: Read as ‘0’
ERASE: Erase/Program Enable bit
1 = Perform the erase operation specified by NVMOP<3:0> on the next WR command
0 = Perform the program operation specified by NVMOP<3:0> on the next WR command
Unimplemented: Read as ‘0’
NVMOP<3:0>: NVM Operation Select bits
If ERASE = 1:
1111 = Memory bulk erase operation
1110 = Reserved
1101 = Erase General Segment
1100 = Erase Secure Segment
1011 = Reserved
0011 = No operation
0010 = Memory page erase operation
0001 = No operation
0000 = Erase a single Configuration register byte
If ERASE = 0:
1111 = No operation
1110 = Reserved
1101 = No operation
1100 = No operation
1011 = Reserved
0011 = Memory word program operation
0010 = No operation
0001 = Memory row program operation
0000 = Program a single Configuration register byte
R/W-0
R/W-0
ERASE
WREN
cleared by hardware once operation is complete
automatically on any set attempt of the WR bit)
NVMCON: FLASH MEMORY CONTROL REGISTER
(1)
(1)
SO = Satiable only bit
W = Writable bit
‘1’ = Bit is set
R/W-0
WRERR
U-0
—
(1)
Preliminary
U-0
U-0
—
—
(2)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
U-0
—
(1)
R/W-0
U-0
—
NVMOP<3:0>
© 2009 Microchip Technology Inc.
(1)
x = Bit is unknown
R/W-0
U-0
(2)
—
(1)
R/W-0
U-0
—
(1)
bit 8
bit 0