PIC24FJ256GA106T-I Datasheet, PDF (239/292 Pages) Microchip Technology – 64/80/100-Pin, 16-Bit General Purpose Flash Microcontrollers with Peripheral Pin Select

PIC24FJ256GA110 FAMILY
REGISTER 24-2: CW2: FLASH CONFIGURATION WORD 2 (CONTINUED)
bit 1-0
POSCMD1:POSCMD0: Primary Oscillator Configuration bits
11 = Primary oscillator disabled
10 = HS Oscillator mode selected
01 = XT Oscillator mode selected
00 = EC Oscillator mode selected
Note 1: Implemented in 100-pin devices only; otherwise unimplemented, read as ‘1’.
REGISTER 24-3: CW3: FLASH CONFIGURATION WORD 3
U-1
U-1
U-1
U-1
U-1
U-1
U-1
U-1
—
—
—
—
—
—
—
—
bit 23
bit 16
R/PO-1
R/PO-1
R/PO-1
U-1
U-1
U-1
U-1
R/PO-1
WPEND
WPCFG
WPDIS
—
—
—
—
WPFP8
bit 15
bit 8
R/PO-1
WPFP7
bit 7
R/PO-1
WPFP6
R/PO-1
WPFP5
R/PO-1
WPFP4
R/PO-1
WPFP3
R/PO-1
WPFP2
R/PO-1
WPFP1
R/PO-1
WPFP0
bit 0
Legend:
R = Readable bit
PO = Program-once bit
-n = Value when device is unprogrammed
U = Unimplemented bit, read as ‘0’
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 23-16
bit 15
bit 14
bit 13
bit 12-9
bit 8-0
Unimplemented: Read as ‘1’
WPEND: Segment Write Protection End Page Select bit
1 = Protected code segment lower boundary is at the bottom of program memory (000000h); upper
boundary is the code page specified by WPFP8:WPFP0
0 = Protected code segment upper boundary is at the last page of program memory; lower boundary
is the code page specified by WPFP8:WPFP0
WPCFG: Configuration Word Code Page Protection Select bit
1 = Last page (at the top of program memory) and Flash Configuration Words are not protected
0 = Last page and Flash Configuration Words are code-protected
WPDIS: Segment Write Protection Disable bit
1 = Segmented code protection disabled
0 = Segmented code protection enabled; protected segment defined by WPEND, WPCFG and
WPFPx Configuration bits
Unimplemented: Read as ‘1’
WPFP8:WPFP0: Protected Code Segment Boundary Page bits
Designates the 16K word program code page that is the boundary of the protected code segment,
starting with Page 0 at the bottom of program memory.
If WPEND = 1:
Last address of designated code page is the upper boundary of the segment.
If WPEND = 0:
First address of designated code page is the lower boundary of the segment.
© 2008 Microchip Technology Inc.
Preliminary
DS39905B-page 237