PIC24FJ256GB106-I Datasheet, PDF (272/328 Pages) Microchip Technology – 64/80/100-Pin, 16-Bit Flash Microcontrollers with USB On-The-Go (OTG)

PIC24FJ256GB110 FAMILY
REGISTER 25-1: CW1: FLASH CONFIGURATION WORD 1
U-1
U-1
U-1
U-1
U-1
U-1
U-1
U-1
—
—
—
—
—
—
—
—
bit 23
bit 16
r-x
R/PO-1
R/PO-1
R/PO-1
R/PO-1
r-1
R/PO-1
R/PO-1
r
JTAGEN
GCP
GWRP
DEBUG
r
ICS1
ICS0
bit 15
bit 8
R/PO-1
R/PO-1
U-1
R/PO-1
R/PO-1
R/PO-1
R/PO-1
R/PO-1
FWDTEN WINDIS
—
FWPSA
WDTPS3 WDTPS2 WDTPS1 WDTPS0
bit 7
bit 0
Legend:
R = Readable bit
PO = Program Once bit
-n = Value when device is unprogrammed
r = Reserved bit
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
bit 11
bit 10
bit 9-8
bit 7
bit 6
bit 5
bit 4
Unimplemented: Read as ‘1’
Reserved: The value is unknown; program as ‘0’
JTAGEN: JTAG Port Enable bit⁽¹⁾
1 = JTAG port is enabled
0 = JTAG port is disabled
GCP: General Segment Program Memory Code Protection bit
1 = Code protection is disabled
0 = Code protection is enabled for the entire program memory space
GWRP: General Segment Code Flash Write Protection bit
1 = Writes to program memory are allowed
0 = Writes to program memory are disabled
DEBUG: Background Debugger Enable bit
1 = Device resets into Operational mode
0 = Device resets into Debug mode
Reserved: Always maintain as ‘1’
ICS1:ICS0: Emulator Pin Placement Select bits
11 = Emulator functions are shared with PGEC1/PGED1
10 = Emulator functions are shared with PGEC2/PGED2
01 = Emulator functions are shared with PGEC3/PGED3
00 = Reserved; do not use
FWDTEN: Watchdog Timer Enable bit
1 = Watchdog Timer is enabled
0 = Watchdog Timer is disabled
WINDIS: Windowed Watchdog Timer Disable bit
1 = Standard Watchdog Timer enabled
0 = Windowed Watchdog Timer enabled; FWDTEN must be ‘1’
Unimplemented: Read as ‘1’
FWPSA: WDT Prescaler Ratio Select bit
1 = Prescaler ratio of 1:128
0 = Prescaler ratio of 1:32
Note 1: The JTAGEN bit can only be modified using In-Circuit Serial Programming™ (ICSP™). It cannot be
modified while programming the device through the JTAG interface.
DS39897B-page 270
Preliminary
© 2008 Microchip Technology Inc.