PIC24F04KA201 Datasheet, PDF (40/224 Pages) Microchip Technology – 14/20-Pin General Purpose, 16-Bit Flash Microcontrollers with nanoWatt XLP™ Technology

PIC24F04KA201 FAMILY
TABLE 4-22: PROGRAM SPACE ADDRESS CONSTRUCTION
Access Type
Access
Space
Program Space Address
<23>
<22:16>
<15>
<14:1>
<0>
Instruction Access
(Code Execution)
User
0
PC<22:1>
0
0xx xxxx xxxx xxxx xxxx xxx0
TBLRD/TBLWT
User
(Byte/Word Read/Write)
TBLPAG<7:0>
0xxx xxxx
Data EA<15:0>
xxxx xxxx xxxx xxxx
Configuration
TBLPAG<7:0>
Data EA<15:0>
Program Space Visibility User
(Block Remap/Read)
1xxx xxxx
xxxx xxxx xxxx xxxx
0
PSVPAG<7:0>⁽²⁾
Data EA<14:0>⁽¹⁾
0
xxxx xxxx
xxx xxxx xxxx xxxx
Note 1: Data EA<15> is always ‘1’ in this case, but is not used in calculating the program space address. Bit 15 of
the address is PSVPAG<0>.
2: PSVPAG can have only one value (‘00’ to access program memory) on the PIC24F04KA201 family.
FIGURE 4-5:
DATA ACCESS FROM PROGRAM SPACE ADDRESS GENERATION
Program Counter⁽¹⁾
Table Operations⁽²⁾
0
Program Counter
0
23 Bits
1/0
TBLPAG
8 Bits
EA
1/0
16 Bits
24 Bits
Select
1
EA
0
Program Space Visibility⁽¹⁾
(Remapping)
0
PSVPAG
8 Bits
15 Bits
23 Bits
User/Configuration
Space Select
Byte Select
Note 1: The LSb of program space addresses is always fixed as ‘0’ in order to maintain word alignment of data in the
program and data spaces.
2: Table operations are not required to be word-aligned. Table read operations are permitted in the configuration
memory space.
DS39937B-page 38
Preliminary
© 2009 Microchip Technology Inc.