DSPIC30F4012 datasheet(25/238 Pages) MICROCHIP

25 / 238 page

DS70135G-page 25

dsPIC30F4011/4012

3.0

MEMORY ORGANIZATION

3.1

Program Address Space

The program address space is 4M instruction words. It

is addressable by the 23-bit PC, table instruction

Effective Address (EA) or data space EA, when

program space is mapped into data space as defined

by Table 3-1. Note that the program space address is

incremented by two between successive program

words in order to provide compatibility with data space

addressing.

User program space access is restricted to the lower

4M instruction word address range (0x000000 to

0x7FFFFE) for all accesses other than TBLRD/TBLWT,

which use TBLPAG<7> to determine user or configura-

tion space access. In Table 3-1, read/write instructions,

bit 23 allows access to the Device ID, the User ID and

the Configuration bits; otherwise, bit 23 is always clear.

FIGURE 3-1:

PROGRAM SPACE

MEMORY MAP FOR

dsPIC30F4011/4012

Note:

This data sheet summarizes features of

this group of dsPIC30F devices and is not

intended to be a complete reference

source. For more information on the CPU,

peripherals,

descriptions

and

general device functionality, refer to the

“dsPIC30F Family Reference Manual”

(DS70046). For more information on the

device instruction set and programming,

refer to the “16-bit MCU and DSC

Reference Manual” (DS70157).

Reset – Target Address

000000

00007E

000002

000080

Device Configuration

User Flash

Program Memory

008000

007FFE

Data EEPROM

(16K instructions)

(1 Kbyte)

800000

F80000

Registers

F8000E

F80010

DEVID (2)

FEFFFE

FF0000

FFFFFE

Reserved

F7FFFE

Reserved

7FFC00

7FFBFE

(Read ‘0’s)

8005FE

800600

UNITID (32 instr.)

8005BE

8005C0

Reset – GOTO Instruction

000004

Reserved

7FFFFE

Reserved

000100

0000FE

000084

Alternate Vector Table

Reserved

Interrupt Vector Table

Vector Tables

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