DSPIC30F3013AT-20I/ML 데이터 시트보기 (PDF) - Microchip Technology

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DSPIC30F3013AT-20I/ML

High-Performance, 16-Bit Digital Signal Controllers

Microchip Technology 

dsPIC30F3014/4013

FIGURE 3-6:

DATA SPACE WINDOW INTO PROGRAM SPACE OPERATION

15

EA<15> = 0

Data 16

Space

EA

15

EA<15> = 1

Data Space

0x0000

PSVPAG(1)

0x00

8

Program Space

0x8000

Address

23

15

15 Concatenation 23

0x000100

0

0x000200

Upper Half of Data

Space is Mapped

into Program Space

0xFFFF

0x007FFF

BSET

MOV

MOV

MOV

CORCON,#2

#0x00, W0

W0, PSVPAG

0x8200, W0

; PSV bit set

; Set PSVPAG register

; Access program memory location

; using a data space access

Data Read

Note:

PSVPAG is an 8-bit register, containing bits <22:15> of the program space address (i.e., it defines

the page in program space to which the upper half of data space is being mapped).

The memory map shown here is for a dsPIC30F4013 device.

© 2007 Microchip Technology Inc.

DS70138E-page 27

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