Microchip Technology MA320001 Data Sheet

© 2011 Microchip Technology Inc.

DS61143H-page 131

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™)

The Configuration bits can be programmed to select
various device configurations.

 

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
(

).

31:24

r-0

r-1

r-1

R/P

r-1

r-1

r-1

R/P

—

—

—

CP

—

—

—

BWP

23:16

r-1

r-1

r-1

r-1

R/P

R/P

R/P

R/P

—

—

—

—

PWP<7:4>

15:8

R/P

R/P

R/P

R/P

r-1

r-1

r-1

r-1

PWP<3:0>

—

—

—

—

7:0

r-1

r-1

r-1

r-1

R/P

r-1

R/P

R/P

—

—

—

—

ICESEL

—

DEBUG<1:0>

R = Readable bit

W = Writable bit

P = Programmable bit

r = Reserved bit

U = Unimplemented bit

-n = Bit Value at POR: (‘0’, ‘1’, x = Unknown)

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’