DSPIC30F2011_08 Datasheet, PDF (31/206 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC30F2011/2012/3012/3013
TABLE 3-1: PROGRAM SPACE ADDRESS CONSTRUCTION
Access Type
Access
Space
Program Space Address
<23>
<22:16>
<15>
<14:1>
<0>
Instruction Access
User
0
PC<22:1>
0
TBLRD/TBLWT
User
(TBLPAG<7> = 0)
TBLPAG<7:0>
Data EA<15:0>
TBLRD/TBLWT
Program Space Visibility
Configuration
(TBLPAG<7> = 1)
User
TBLPAG<7:0>
0
PSVPAG<7:0>
Data EA<15:0>
Data EA<14:0>
FIGURE 3-3:
DATA ACCESS FROM PROGRAM SPACE ADDRESS GENERATION
23 bits
Using
Program
0
Program Counter
0
Counter
Using
Program
Space
Visibility
Select
1
0 PSVPAG Reg
8 bits
EA
15 bits
Using
Table
Instruction
1/0 TBLPAG Reg
8 bits
EA
16 bits
User/
Configuration
Space
Select
24-bit EA
Byte
Select
Note: Program space visibility cannot be used to access bits <23:16> of a word in program memory.
© 2008 Microchip Technology Inc.
DS70139F-page 31