PIC32MX3XX_1 Datasheet, PDF (131/208 Pages) Microchip Technology – High-Performance, General Purpose and USB 32-bit Flash Microcontrollers

PIC32MX3XX/4XX
26.0 SPECIAL FEATURES
Note:
This data sheet summarizes the features of
the PIC32MX3XX/4XX family of devices. It
is not intended to be a comprehensive
reference source. To complement the infor-
mation in this data sheet, refer to the related
section in the “PIC32MX Family Reference
Manual” (DS61132), which is available from
the
Microchip
web
site
(www.microchip.com/PIC32).
PIC32MX3XX/4XX devices include several features
intended to maximize application flexibility and reliabil-
ity and minimize cost through elimination of external
components. These are:
• Flexible Device Configuration
• Watchdog Timer
• JTAG Interface
• In-Circuit Serial Programming™ (ICSP™)
26.1 Configuration Bits
The Configuration bits can be programmed to select
various device configurations.
REGISTER 26-1: DEVCFG0: DEVICE CONFIGURATION WORD 0
r-0
r-1
r-1
R/P
r-1
r-1
—
—
—
CP
—
—
bit 31
r-1
R/P
—
BWP
bit 24
r-1
—
bit 23
r-1
r-1
r-1
R/P
R/P
R/P
R/P
—
—
—
PWP<7:4>
bit 16
R/P
R/P
R/P
R/P
r-1
r-1
r-1
r-1
PWP<3:0>
—
—
—
—
bit 15
bit 8
r-1
—
bit 7
r-1
r-1
r-1
R/P
r-1
R/P
R/P
—
—
—
ICESEL
—
DEBUG<1:0>
bit 0
Legend:
R = Readable bit
U = Unimplemented bit
W = Writable bit
P = Programmable bit
-n = Bit Value at POR: (‘0’, ‘1’, x = Unknown)
r = Reserved bit
bit 31
bit 30-29
bit 28
bit 27-25
bit 24
bit 23-20
Reserved: Write ‘0’
Reserved: Write ‘1’
CP: Code-Protect bit
Prevents boot and program Flash memory from being read or modified by an external
programming device.
1 = Protection disabled
0 = Protection enabled
Reserved: Write ‘1’
BWP: Boot Flash Write-Protect bit
Prevents boot Flash memory from being modified during code execution.
1 = Boot Flash is writable
0 = Boot Flash is not writable
Reserved: Write ‘1’
© 2010 Microchip Technology Inc.
DS61143G-page 131