DSPIC33FJ16GS502-I Datasheet, PDF (43/346 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04
4.0 MEMORY ORGANIZATION
Note:
This data sheet summarizes the features
of the dsPIC33FJ06GS101/X02 and
dsPIC33FJ16GSX02/X04 families of
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”, Section 4. “Program
Memory” (DS70202), which is available
from the Microchip web site
(www.microchip.com).
The dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/
X04 architecture features separate program and data
memory spaces and buses. This architecture also allows
the direct access to program memory from the data
space during code execution.
4.1 Program Address Space
The program address memory space of the
dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/
X04 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 4.6 “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 dsPIC33FJ06GS101/X02
and dsPIC33FJ16GSX02/X04 devices are shown in
Figure 4-1.
FIGURE 4-1:
PROGRAM MEMORY MAPS FOR dsPIC33FJ06GS101/X02 and
dsPIC33FJ16GSX02/X04 DEVICES
dsPIC33FJ06GS101/102/202
GOTO Instruction
Reset Address
Interrupt Vector Table
Reserved
Alternate Vector Table
User Program
Flash Memory
(1792 instructions)
0x000000
0x000002
0x000004
0x0000FE
0x000100
0x000104
0x0001FE
0x000200
0x000FFE
0x001000
dsPIC33FJ16GS402/404/502/504
GOTO Instruction
Reset Address
0x000000
0x000002
0x000004
Interrupt Vector Table
Reserved
Alternate Vector Table
User Program
Flash Memory
0x0000FE
0x000100
0x000104
0x0001FE
0x000200
(5376 instructions)
0x002BFE
0x002C00
Unimplemented
(Read ‘0’s)
0x7FFFFE
0x800000
Unimplemented
(Read ‘0’s)
0x7FFFFE
0x800000
Reserved
Reserved
Device Configuration
Registers
0xF7FFFE
0xF80000
0xF80017
0xF80018
Reserved
Device Configuration
Registers
0xF7FFFE
0xF80000
0xF80017
0xF80018
Reserved
DEVID (2)
Reserved
0xFEFFFE
0xFF0000
0xFF0002
0xFFFFFE
DEVID (2)
Reserved
0xFEFFFE
0xFF0000
0xFF0002
0xFFFFFE
© 2009 Microchip Technology Inc.
Preliminary
DS70318D-page 41