PIC24F16KA102_11 Datasheet, PDF (47/278 Pages) Microchip Technology – 20/28-Pin General Purpose, 16-Bit Flash Microcontrollers with nanoWatt XLP Technology

PIC24F16KA102 FAMILY
REGISTER 5-1: NVMCON: FLASH MEMORY CONTROL REGISTER
R/SO-0, HC R/W-0
R/W-0
R/W-0
U-0
U-0
U-0
WR
WREN
WRERR PGMONLY⁽⁴⁾
—
—
—
bit 15
U-0
—
bit 8
U-0
—
bit 7
R/W-0
ERASE
R/W-0
R/W-0
NVMOP5⁽¹⁾ NVMOP4⁽¹⁾
R/W-0
R/W-0
R/W-0
NVMOP3⁽¹⁾ NVMOP2⁽¹⁾ NVMOP1⁽¹⁾
R/W-0
NVMOP0⁽¹⁾
bit 0
Legend:
-n = Value at POR
‘0’ = Bit is cleared
SO = Settable Only bit
‘1’ = Bit is set
x = Bit is unknown
HC = Hardware Clearable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
bit 15
bit 14
bit 13
bit 12
bit 11-7
bit 6
bit 5-0
WR: Write Control bit
1 = Initiates a Flash memory program or erase operation. The operation is self-timed and the bit is
cleared by hardware once the operation is complete
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 automatically
on any set attempt of the WR bit)
0 = The program or erase operation completed normally
PGMONLY: Program Only Enable bit⁽⁴⁾
Unimplemented: Read as ‘0’
ERASE: Erase/Program Enable bit
1 = Perform the erase operation specified by NVMOP<5:0> on the next WR command
0 = Perform the program operation specified by NVMOP<5:0> on the next WR command
NVMOP<5:0>: Programming Operation Command Byte bits⁽¹⁾
Erase Operations (when ERASE bit is ‘1’):
1010xx = Erase entire boot block (including code-protected boot block)⁽²⁾
1001xx = Erase entire memory (including boot block, configuration block, general block)⁽²⁾
011010 = Erase 4 rows of Flash memory⁽³⁾
011001 = Erase 2 rows of Flash memory⁽³⁾
011000 = Erase 1 row of Flash memory⁽³⁾
0101xx = Erase entire configuration block (except code protection bits)
0100xx = Erase entire data EEPROM⁽⁴⁾
0011xx = Erase entire general memory block programming operations
0001xx = Write 1 row of Flash memory (when ERASE bit is ‘0’)⁽³⁾
Note 1:
2:
3:
4:
All other combinations of NVMOP<5:0> are no operation.
Available in ICSP™ mode only. Refer to device programming specification.
The address in the Table Pointer decides which rows will be erased.
This bit is used only while accessing data EEPROM.
 2008-2011 Microchip Technology Inc.
DS39927C-page 47