DSPIC33FJ32MC202 Datasheet, PDF (27/292 Pages) Microchip Technology – High-Performance, 16-bit Microcontrollers

dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304
3.0 MEMORY ORGANIZATION
Note:
This data sheet summarizes the features
of the dsPIC33FJ32MC202/204 and
dsPIC33FJ16MC304 devices. It is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to the “dsPIC33F
Family Reference Manual”. Please see
the Microchip web site (www.micro-
chip.com) for the latest dsPIC33F Family
Reference Manual sections.
The
dsPIC33FJ32MC202/204
and
dsPIC33FJ16MC304 architecture features separate
program and data memory spaces and buses. This
architecture also allows the direct access of program
memory from the data space during code execution.
3.1 Program Address Space
The program address memory space of the
dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304
devices is 4M instructions. The space is addressable
by a 24-bit value derived either from the 23-bit Program
Counter (PC) during program execution, or from table
operation or data space remapping as described in
Section 3.6 “Interfacing Program and Data Memory
Spaces”.
User application access to the program memory space
is restricted to the lower half of the address range
(0x000000 to 0x7FFFFF). 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.
The memory maps for the dsPIC33FJ32MC202/204
and dsPIC33FJ16MC304 devices are shown in
Figure 3-1.
FIGURE 3-1:
PROGRAM MEMORY MAPS FOR dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304
DEVICES
dsPIC33FJ32MC202/204
GOTO Instruction
Reset Address
Interrupt Vector Table
Reserved
Alternate Vector Table
User Program
Flash Memory
(11264 instructions)
0x000000
0x000002
0x000004
0x0000FE
0x000100
0x000104
0x0001FE
0x000200
0x0057FE
0x005800
dsPIC33FJ16MC304
GOTO Instruction
Reset Address
Interrupt Vector Table
Reserved
Alternate Vector Table
User Program
Flash Memory
(5632 instructions)
0x000000
0x000002
0x000004
0x0000FE
0x000100
0x000104
0x0001FE
0x000200
0x002BFE
0x002C00
Unimplemented
(Read ‘0’s)
Unimplemented
(Read ‘0’s)
0x7FFFFE
0x800000
Reserved
Device Configuration
Registers
0xF7FFFE
0xF80000
0xF80017
0xF80018
Reserved
DEVID (2)
0xFEFFFE
0xFF0000
0xFFFFFE
© 2007 Microchip Technology Inc.
Preliminary
0x7FFFFE
0x800000
Reserved
Device Configuration
Registers
0xF7FFFE
0xF80000
0xF80017
0xF80018
Reserved
DEVID (2)
0xFEFFFE
0xFF0000
0xFFFFFE
DS70283B-page 25