PIC24FJ64GA306-I/MR Microchip Technology, PIC24FJ64GA306-I/MR Datasheet - Page 41

• Manufacturer Part Number: PIC24FJ64GA306-I/MR
• Description: 16-bit, 16 MIPS, 64 KB Flash, 8 KB RAM, 53 I/O, LCD, XLP W/Vbat 64 QFN 9x9x0.9mm
• Manufacturer: Microchip Technology

4.0
As Harvard architecture devices, PIC24F micro-
controllers feature separate program and data memory
spaces and busses. This architecture also allows direct
access of program memory from the data space during
code execution.
4.1
The
PIC24FJ128GA310 family devices is 4M instructions.
The space is addressable by a 24-bit value derived
FIGURE 4-1:
 2010-2011 Microchip Technology Inc.
program
Note:
MEMORY ORGANIZATION
Program Memory Space
Memory areas are not shown to scale.
address
PROGRAM SPACE MEMORY MAP FOR PIC24FJ128GA310 FAMILY DEVICES
Device Config Registers
PIC24FJ64GA3XX
Alternate Vector Table
Interrupt Vector Table
Flash Config Words
memory
Program Memory
(22K instructions)
GOTO Instruction
Unimplemented
Reset Address
User Flash
DEVID (2)
Reserved
Reserved
Reserved
Read ‘0’
space
of
PIC24FJ128GA310 FAMILY
the
from either the 23-bit Program Counter (PC) during pro-
gram execution, or from table operation or data space
remapping, as described in
Program and Data Memory
User access to the program memory space is restricted
to the lower half of the address range (000000h to
7FFFFFh). The exception is the use of TBLRD/TBLWT
operations, which use TBLPAG<7> to permit access to
the Configuration bits and Device ID sections of the
configuration memory space.
Memory maps for the PIC24FJ128GA310 family of
devices are shown in
Device Config Registers
PIC24F128GA3XX
Alternate Vector Table
Interrupt Vector Table
Flash Config Words
(44K instructions)
Program Memory
GOTO Instruction
Unimplemented
Reset Address
User Flash
DEVID (2)
Reserved
Reserved
Reserved
Read ‘0’
Figure
4-1.
Section 4.3 “Interfacing
Spaces”.
000000h
000002h
000004h
0000FEh
000100h
000104h
0001FEh
000200h
00ABFEh
00AC00h
0157FEh
015800h
7FFFFEh
800000h
F7FFFEh
F80000h
F8000Eh
F80010h
FEFFFEh
FF0000h
FFFFFEh
DS39996F-page 41