AC164139 Microchip Technology, AC164139 Datasheet - Page 74
![Graphics Display Prototype Board Graphics](/photos/28/36/283699/ac164139_sml.jpg)
AC164139
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AC164139
Manufacturer:
Microchip Technology
Quantity:
135
- Current page: 74 of 408
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PIC24FJ256DA210 FAMILY
The page registers (DSRPAG/DSWPAG) do not
update automatically while crossing a page boundary,
when the rollover happens from 0xFFFF to 0x8000.
While developing code in assembly, care must be taken
to update the page registers when an Address Pointer
crosses the page boundary. The ‘C’ compiler keeps
track of the addressing, and increments or decrements
the page registers accordingly while accessing
contiguous data memory locations.
TABLE 4-35:
DS39969B-page 74
Note 1:
(Data Space Read Register)
2:
3:
4:
DSRPAG
If the source/destination address is below 0x8000, the DSRPAG and DSWPAG registers are not considered.
This data space can also be accessed by Direct Addressing.
When the source/destination address is above 0x8000 and DSRPAG/DSWPAG is ‘0’, an address error
trap will occur.
EPMP memory space can start from location, 0x008000, in the parts with 24 Kbytes of data memory
(PIC24FJXXXDA1XX)
0x1FF
0x001
0x002
0x003
0x004
0x000
x
(1)
•
•
•
EDS MEMORY ADDRESS WITH DIFFERENT PAGES AND ADDRESSES
(Data Space Write
DSWPAG
Register)
0x1FF
0x001
0x002
0x003
0x004
0x000
x
(1)
•
•
•
Indirect Addressing
Source/Destination
0x8000 to 0xFFFF
0x0000 to 0x1FFF
0x2000 to 0x7FFF
Address while
Note 1: All write operations to EDS are executed
2: Use of Read/Modify/Write operation on
3: Use
in a single cycle.
any EDS location under a REPEAT
instruction is not supported. For example,
BCLR, BSW, BTG, RLC f, RLNC f,
RRC f, RRNC f, ADD f, SUB f,
SUBR f, AND f, IOR f, XOR f,
ASR f, ASL f.
performing Read/Modify/Write operation.
the
Invalid Address Address error
0xFF8000 to
0x000000 to
0x002000 to
0x008000 to
0x010000 to
0x018000 to
0x018800 to
Pointing to
0xFFFFFE
0x00FFFE
0x017FFE
0x027FFE
2010 Microchip Technology Inc.
0x001FFF
0x007FFF
0x0187FE
24-Bit EA
DSRPAG
EDS
•
•
•
register
Near data
space
32 Kbytes on
each page
Only 2 Kbytes
of extended
SRAM on this
page
EPMP
memory
space
trap
Comment
(3)
(2)
(4)
while
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