Datasheet

 2010 Microchip Technology Inc. DS39951C-page 243
PIC24FJ64GA104 FAMILY
REGISTER 25-3: 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 R/PO-1 R/PO-1 R/PO-1 R/PO-1
WPEND WPCFG WPDIS
— WUTSEL1 WUTSEL0 SOSCSEL1
(1)
SOSCSEL0
(1)
bit 15 bit 8
U-1 U-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
— — WPFP5 WPFP4 WPFP3 WPFP2 WPFP1 WPFP0
bit 7 bit 0
Legend:
R = Readable bit PO = Program Once bit U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed ‘1’ = Bit is set ‘0’ = Bit is cleared
bit 23-16 Unimplemented: Read as ‘1’
bit 15 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 WPFP<8:0>
0 = Protected code segment upper boundary is at the last page of program memory; lower boundary
is the code page specified by WPFP<8:0>
bit 14 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
bit 13 WPDIS: Segment Write Protection Disable bit
1 = Segmented code protection is disabled
0 = Segmented code protection is enabled; protected segment defined by WPEND, WPCFG and
WPFPx Configuration bits
bit 12 Unimplemented: Read as ‘1’
bit 11-10 WUTSEL<1:0>: Voltage Regulator Standby Mode Wake-up Time Select bits
11 = Default regulator start-up time used
01 = Fast regulator start-up time used
x0 = Reserved; do not use
bit 9-8 SOSCSEL<1:0>: Secondary Oscillator Power Mode Select bits
(1)
11 = SOSC pins are in default (high drive strength) oscillator mode
01 = SOSC pins are in Low-Power (low drive strength) Oscillator mode
00 = SOSC pins have digital I/O functions (RA4, RB4); SCLKI can be used
10 = Reserved
bit 7-6 Unimplemented: Read as ‘1’
bit 5-0 WPFP5:WPFP0: Protected Code Segment Boundary Page bits
Designates the 512 instruction page that is the boundary of the protected code segment, starting with
Page 9 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.
Note 1: Digital functions on the SOSCI and SOSCO pins are only available when configured in Digital I/O mode
(‘00’).