DSPIC30F2023-20E/ML Microchip Technology, DSPIC30F2023-20E/ML Datasheet - Page 33
DSPIC30F2023-20E/ML
Manufacturer Part Number
DSPIC30F2023-20E/ML
Description
12KB, Flash, 512bytes-RAM, 30MIPS, 35I/O, 16-bit Family,nanoWatt 44 QFN 8x8x0.9m
Manufacturer
Microchip Technology
Series
dsPIC™ 30Fr
Datasheets
1.AC164335.pdf
(286 pages)
2.DM300023.pdf
(22 pages)
3.DM300023.pdf
(18 pages)
4.DSPIC30F2011-20ISO.pdf
(66 pages)
5.DSPIC30F2011-20IP.pdf
(26 pages)
6.DSPIC30F1010-30ISO.pdf
(26 pages)
7.DSPIC30F1010-30ISO.pdf
(50 pages)
Specifications of DSPIC30F2023-20E/ML
Core Processor
dsPIC
Core Size
16-Bit
Speed
20 MIPS
Connectivity
I²C, IrDA, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
35
Program Memory Size
12KB (4K x 24)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLE
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DSPIC30F2023-20E/ML
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- AC164335 PDF datasheet
- DM300023 PDF datasheet #2
- DM300023 PDF datasheet #3
- DSPIC30F2011-20ISO PDF datasheet #4
- DSPIC30F2011-20IP PDF datasheet #5
- DSPIC30F1010-30ISO PDF datasheet #6
- DSPIC30F1010-30ISO PDF datasheet #7
- Current page: 33 of 286
- Download datasheet (5Mb)
3.1.1
This architecture fetches 24-bit wide program memory.
Consequently, instructions are always aligned. How-
ever, as the architecture is modified Harvard, data can
also be present in program space.
There are two methods by which program space can
be accessed; via special table instructions, or through
the remapping of a 16K word program space page into
the upper half of data space (see Section 3.1.2 “Data
Access from Program Memory Using Program
Space Visibility”). The TBLRDL and TBLWTL instruc-
tions offer a direct method of reading or writing the least
significant word (lsw) of any address within program
space, without going through data space. The TBLRDH
and TBLWTH instructions are the only method whereby
the upper 8 bits of a program space word can be
accessed as data.
The PC is incremented by two for each successive
24-bit program word. This allows program memory
addresses to directly map to data space addresses.
Program memory can thus be regarded as two 16-bit
word wide address spaces, residing side by side, each
with the same address range. TBLRDL and TBLWTL
access the space which contains the Least Significant
Data Word, and TBLRDH and TBLWTH access the
space which contains the Most Significant Data Byte.
Figure 3-2 shows how the EA is created for table oper-
ations and data space accesses (PSV = 1). Here,
P<23:0> refers to a program space word, whereas
D<15:0> refers to a data space word.
FIGURE 3-3:
© 2006 Microchip Technology Inc.
Program Memory
‘Phantom’ Byte
(Read as ‘0’).
DATA ACCESS FROM PROGRAM
MEMORY USING TABLE
INSTRUCTIONS
PC Address
0x000004
0x000006
0x000002
0x000000
PROGRAM DATA TABLE ACCESS (LEAST SIGNIFICANT WORD)
00000000
00000000
00000000
00000000
23
TBLRDL.W
Preliminary
16
A set of Table Instructions is provided to move byte or
word sized data to and from program space.
1.
2.
3.
4.
dsPIC30F1010/202X
TBLRDL: Table Read Low
Word: Read the lsw of the program address;
P<15:0> maps to D<15:0>.
Byte: Read one of the LSBs of the program
address;
P<7:0> maps to the destination byte when byte
select = 0;
P<15:8> maps to the destination byte when byte
select = 1.
TBLWTL: Table Write Low (refer to Section 7.0
“Flash Program Memory” for details on Flash
Programming).
TBLRDH: Table Read High
Word: Read the most significant word of the
program address;
P<23:16> maps to D<7:0>; D<15:8> always
be = 0.
Byte: Read one of the MSBs of the program
address;
P<23:16> maps to the destination byte when
byte select = 0;
The destination byte will always be = 0 when
byte select = 1.
TBLWTH: Table Write High (refer to Section 7.0
“Flash Program Memory” for details on Flash
Programming).
TBLRDL.B (Wn<0> = 1)
8
TBLRDL.B (Wn<0> = 0)
0
DS70178C-page 31
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