pic32mx320f032h Microchip Technology Inc., pic32mx320f032h Datasheet - Page 27

• Manufacturer Part Number: pic32mx320f032h
• Description: 64/100-pin General Purpose And Usb 32-bit Flash Microcontrollers
• Manufacturer: Microchip Technology Inc.

4.0
PIC32MX3XX/4XX microcontrollers provide 4 GB of
unified virtual memory address space. All memory
regions including program, data memory, SFRs, and
Configuration registers reside in this address space at
their respective unique addresses. The program and
data memories can be optionally partitioned into user
and kernel memories. In addition, the data memory can
be made executable, allowing PIC32MX3XX/4XX to
execute from data memory.
Key Features:
• 32-bit native data width
• Separate User and Kernel mode address space
• Flexible program Flash memory partitioning
• Flexible data RAM partitioning for data and
• Separate boot Flash memory for protected code
• Robust bus exception handling to intercept
• Simple memory mapping with Fixed Mapping
• Cacheable and non-cacheable address regions
© 2009 Microchip Technology Inc.
Note:
program space
runaway code.
Translation (FMT) unit
MEMORY ORGANIZATION
reference source. Refer to the “PIC32MX
This data sheet summarizes the features of
the PIC32MX3XX/4XX family of devices. It
is not intended to be a comprehensive
Family Reference Manual” Section 3.
“Memory Organization” (DS61115) for a
detailed description of this peripheral.
The manual is available from the Microchip
web site (www.Microchip.com/PIC32).
Preliminary
4.1
PIC32MX3XX/4XX microcontrollers implement two
address spaces: Virtual and Physical. All hardware
resources such as program memory, data memory, and
peripherals are located at their respective physical
addresses. Virtual addresses are exclusively used by
the CPU to fetch and execute instructions as well as
access peripherals. Physical addresses are used by
peripherals such as DMA and Flash controller that
access memory independently of CPU.
PIC32MX3XX/4XX
PIC32MX3XX/4XX Memory Layout
DS61143F-page 25