pic32mx320f064h Microchip Technology Inc., pic32mx320f064h Datasheet - Page 120

• Manufacturer Part Number: pic32mx320f064h
• Description: 64/100-pin General Purpose, 32-bit Flash Microcontrollers
• Manufacturer: Microchip Technology Inc.

PIC32MX FAMILY
6.4
Table 6-2 shows the address map of the PIC32MX
microcontroller.
On reset, the PIC32MX starts executing code from
0xBFC0_0000 virtual address which reside in the
kseg1 segment (non cacheable segment).
TABLE 6-2:
DS61143A-page 118
Note 1:
Memory Type Begin Address
2:
3:
RAM (Prog)
RAM (Prog)
RAM (Data)
RAM (Data)
Boot Flash
Peripheral
Program
Program
Program
PIC32MX Address Map
Flash
Flash
Flash
Program Flash virtual addresses in the non-cacheable range (KSEG1).
Program Flash virtual addresses in the cacheable and prefetchable range (KSEG0).
The RAM size varies between PIC32MX device family members.
(1)
(2)
PIC32MX ADDRESS MAP
0x7D000000 +
0x80000000 +
0x7F000000 +
0x7F000000 +
0xBFC00000
0xBD000000
0x9D000000
0xBF800000
BMXDUDBA
0x80000000
BMXDKPBA
BMXPUPBA
BMXDUPBA
Virtual Addresses
BMXDUPBA - 1
BMXPUPBA - 1
BMXPUPBA - 1
BMXDKPBA - 1
BMXDUDBA -1
RAM Size
0xBD000000 +
0x9D000000 +
0x7D000000 +
0x7F000000 +
0x7F000000 +
0x80000000 +
0x80000000 +
End Address
0xBFC02FFF
0xBF8FFFFF
PFM Size - 1
Advance Information
(3)
- 1
Begin Address
0xBD000000 +
0xBF000000 +
0xBF000000 +
0x1FC00000
0x1D000000
0x1D000000
BMXDUDBA
BMXDKPBA
0x1F800000
BMXPUPBA
BMXDUPBA
0x00000000
6.4.1
The Kernel Program Flash address space starts at
physical address 0x1D000000, whereas the user pro-
gram
0xBD000000 + BMXPUPBA register value.
Similarly, the internal RAM is also divided into Kernel
and User partitions. The kernal RAM space starts at
physical address 0x00000000, whereas the User RAM
space starts at physical address 0xBF000000 +
BMXDUDBA register value.
By default the entire Flash memory and RAM are
mapped to the Kernel mode application only.
Physical Addresses
flash
PHYSICAL MEMORY ADDRESS
space
BMXPUPBA - 1
BMXPUPBA - 1
BMXDKPBA - 1
BMXDUPBA - 1
RAM Size
BMXDUDBA -1
0xBD000000 +
0x1D000000 +
0xBF000000 +
0xBF000000 +
End Address
0x1FC02FFF
0x1D00000 +
0x1F8FFFFF
PFM Size - 1
starts
© 2007 Microchip Technology Inc.
(3)
- 1
at
physical
BMXDUDBA -
Size in Bytes
BMXDUPBA -
BMXDKPBA
BMXDUDBA
BMXDUPBA
BMXPUPBA
BMXPUPBA
BMXDKPBA
BMXPUPBA
Calculation
DRM Size -
PFM Size -
12 KB
1 MB
address