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PIC32MX3XX/4XX
1.0
DEVICE OVERVIEW
This document contains device-specific information for
the PIC32MX3XX/4XX devices.
Note 1: 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 information in this data
sheet, refer to the “PIC32MX Family
Reference Manual” , which is available
from the Microchip web site
(www.microchip.com/PIC32).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Figure 1-1 illustrates a general block diagram of the core
and peripheral modules in the PIC32MX3XX/4XX fami-
lies of devices.
Table 1-1 lists the functions of the various pins shown
in the pinout diagrams.
FIGURE 1-1:
BLOCK DIAGRAM (1,2)
OSC2/CLKO
OSC1/CLKI
OSC/S OSC
Oscillators
V DDCORE /V CAP
Power-up
Timer
V DD , V SS
FRC/LPRC
Oscillators
ENVREG
Voltage
Regulator
Oscillator
Start-up Timer
MCLR
PLL
DIVIDERS
PLL-USB
Timing
Generation
Precision
Band Gap
Reference
USBCLK
SYSCLK
PBCLK
Power-on
Reset
Watchdog
Timer
Brown-out
Reset
CN1-22
Peripheral Bus Clocked by SYSCLK
PORTA
Timer1-5
PORTB
PORTC
JTAG
BSCAN
EJTAG
Priority
Interrupt
Controller
INT
USB
DMAC
ICD
32
PWM
OC1-5
IC1-5
MIPS32 ?
M4K ?
CPU Core
PORTD
PORTE
32
IS
32
DS
32
32
32
32
SPI1,2
I2C1,2
Bus Matrix
32
PORTF
PORTG
32
Prefetch
Module
32
Data RAM
32
Peripheral Bridge
PMP
10-bit ADC
UART1,2
128
128-bit wide
Flash
RTCC
Program Flash Memory
Controller
Comparators
Note
1:
2:
Some features are not available on all device variants.
BOR functionality is provided when the on-board voltage regulator is enabled.
? 2010 Microchip Technology Inc.
DS61143G-page 21
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