AC164139 Microchip Technology, AC164139 Datasheet - Page 76

• Manufacturer Part Number: AC164139
• Description: Graphics Display Prototype Board Graphics
• Manufacturer: Microchip Technology

Specifications of AC164139

• Main Purpose: LCD Development
• Embedded: No
• Utilized Ic / Part: PICtail™ Plus Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Primary Attributes: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC24FJ256DA210 FAMILY
TABLE 4-36:
FIGURE 4-8:
DS39969B-page 76
Instruction Access
(Code Execution)
TBLRD/TBLWT
(Byte/Word Read/Write)
Program Space Visibility
(Block Remap/Read)
Note 1:
Note 1: DSRPAG<8> acts as word select. DSRPAG<9> should always be ‘1’ to map program memory to data memory.
Access Type
2:
Program Counter
Table Operations
Program Space Visibility
(Remapping)
2: The instructions, TBLRDH/TBLWTH/TBLRDL/TBLWTL, decide if the higher or lower word of program memory is
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 DSRPAG<0>.
program memory is read. When DSRPAG<8> is ‘0’, the lower word is read and when it is ‘1’, the higher
word is read.
DSRPAG<9> is always ‘1’ in this case. DSRPAG<8> decides whether the lower word or higher word of
accessed. TBLRDH/TBLWTH instructions access the higher word and TBLRDL/TBLWTL instructions access the
lower word. Table read operations are permitted in the configuration memory space.
PROGRAM SPACE ADDRESS CONSTRUCTION
DATA ACCESS FROM PROGRAM SPACE ADDRESS GENERATION
(2)
User
User
Configuration
User
(1)
User/Configuration
1-Bit
Access
Space
Space Select
1/0
0
0
TBLPAG
8 Bits
DSRPAG<7:0>
<23>
8 Bits
0
0
0
Select
TBLPAG<7:0>
TBLPAG<7:0>
0xxx xxxx
1xxx xxxx
Program Counter
0xx xxxx xxxx xxxx xxxx xxx0
<22:16>
DSRPAG<7:0>
24 Bits
1
xxxx xxxx
23 Bits
23 Bits
Program Space Address
PC<22:1>
(2)
16 Bits
<15>
15 Bits
EA
EA
xxxx xxxx xxxx xxxx
xxxx xxxx xxxx xxxx
 2010 Microchip Technology Inc.
Data EA<15:0>
Data EA<15:0>
xxx xxxx xxxx xxxx
<14:1>
Data EA<14:0>
Byte Select
1/0
1/0
0
(1)
<0>
0