PIC32MX320F032H_11 Datasheet, PDF (131/214 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 family of
devices. It is not intended to be a compre-
hensive reference source. To complement
the information in this data sheet, refer to
Section 9. “Watchdog Timer and
Power-up Timer” (DS61114), Section
32. “Configuration” (DS61124) and
Section 33. “Programming and Diag-
nostics” (DS61129) of the “PIC32 Family
Reference Manual”, 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
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Range 31/23/15/7 30/22/14/6 29/21/13/5 28/20/12/4 27/19/11/3 26/18/10/2 25/17/9/1 24/16/8/0
r-0
31:24
—
r-1
23:16
—
R/P
15:8
r-1
7:0
—
r-1
r-1
—
—
r-1
r-1
—
—
R/P
R/P
PWP<3:0>
r-1
r-1
—
—
R/P
r-1
r-1
r-1
R/P
CP
—
—
—
BWP
r-1
R/P
R/P
R/P
R/P
—
PWP<7:4>
R/P
r-1
r-1
r-1
r-1
—
—
—
—
r-1
R/P
r-1
R/P
R/P
—
ICESEL
—
DEBUG<1:0>
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 Reserved: Write ‘0’
bit 30-29 Reserved: Write ‘1’
bit 28 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
bit 27-25 Reserved: Write ‘1’
bit 24 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
bit 23-20 Reserved: Write ‘1’
© 2011 Microchip Technology Inc.
DS61143H-page 131