dspic33fj128gp706at-i-pt Microchip Technology Inc., dspic33fj128gp706at-i-pt Datasheet - Page 39

• Manufacturer Part Number: dspic33fj128gp706at-i-pt
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

4.0
The dsPIC33FJXXXGPX06A/X08A/X10A 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.
FIGURE 4-1:
© 2009 Microchip Technology Inc.
Note:
Note:
MEMORY ORGANIZATION
This data sheet summarizes the features
of the dsPIC33FJXXXGPX06A/X08A/X10A
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 3. “Data
Memory” (DS70202) and Section 4. “Pro-
gram
“dsPIC33F Family Reference Manual”,
which is available from the Microchip web
site (www.microchip.com).
dsPIC33FJ64GPXXXA
Alternate Vector Table
Interrupt Vector Table
Device Configuration
Memory areas are not shown to scale.
(22K instructions)
GOTO Instruction
Unimplemented
Reset Address
Flash Memory
User Program
Memory”
(Read ‘0’s)
Reserved
DEVID (2)
Registers
Reserved
Reserved
PROGRAM MEMORY FOR dsPIC33FJXXXGPX06A/X08A/X10A DEVICES
dsPIC33FJXXXGPX06A/X08A/X10A
(DS70203)
in
dsPIC33FJ128GPXXXA
Alternate Vector Table
Interrupt Vector Table
Device Configuration
(44K instructions)
GOTO Instruction
Unimplemented
the
Reset Address
Preliminary
Flash Memory
User Program
(Read ‘0’s)
DEVID (2)
Registers
Reserved
Reserved
Reserved
4.1
The
dsPIC33FJXXXGPX06A/X08A/X10A devices is 4M
instructions. The space is addressable by a 24-bit
value derived from either 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 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. Memory usage for the
dsPIC33FJXXXGPX06A/X08A/X10A of devices is
shown in Figure 4-1.
program
Program Address Space
dsPIC33FJ256GPXXXA
Alternate Vector Table
Interrupt Vector Table
Device Configuration
(88K instructions)
Unimplemented
GOTO
Reset Address
address
User Program
Flash Memory
(Read ‘0’s)
DEVID (2)
Reserved
Registers
Reserved
Reserved
Instruction
memory
DS70593A-page 37
0x000000
0x000002
0x000004
0x0000FE
0x000100
0x000104
0x0001FE
0x000200
0x00ABFE
0x00AC00
0x0157FE
0x015800
0x02ABFE
0x02AC00
0x7FFFFE
0x800000
0xF7FFFE
0xF80000
0xF80017
0xF80010
0xFEFFFE
0xFF0000
0xFFFFFE
space
of
the