參數(shù)資料
型號: DSPIC30F4013-30I/ML
廠商: Microchip Technology
文件頁數(shù): 74/153頁
文件大小: 0K
描述: IC DSPIC MCU/DSP 48K 44QFN
產(chǎn)品培訓模塊: Serial Communications using dsPIC30F CAN
Serial Communications using dsPIC30F I2C
Serial Communications using dsPIC30F SPI
Serial Communications using dsPIC30F UART
dsPIC30F 12 bit ADC - Part 2
dsPIC30F Addressing Modes - Part 1
dsPIC30F Architecture - Part 1
dsPIC30F DSP Engine & ALU
dsPIC30F Interrupts
dsPIC30F Motor Control PWM
dsPIC Timers
Asynchronous Stimulus
dsPIC30F Addressing Modes - Part 2
dsPIC30F Architecture - Part 2
dsPIC30F 12-bit ADC Part 1
標準包裝: 45
系列: dsPIC™ 30F
核心處理器: dsPIC
芯體尺寸: 16-位
速度: 30 MIP
連通性: CAN,I²C,SPI,UART/USART
外圍設備: AC'97,欠壓檢測/復位,I²S,POR,PWM,WDT
輸入/輸出數(shù): 30
程序存儲器容量: 48KB(16K x 24)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 1K x 8
RAM 容量: 2K x 8
電壓 - 電源 (Vcc/Vdd): 2.5 V ~ 5.5 V
數(shù)據(jù)轉換器: A/D 13x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-VQFN 裸露焊盤
包裝: 管件
產(chǎn)品目錄頁面: 651 (CN2011-ZH PDF)
配用: XLT44QFN2-ND - SOCKET TRAN ICE 44QFN/40DIP
AC164322-ND - MODULE SOCKET MPLAB PM3 28/44QFN
DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE
其它名稱: DSPIC30F401330IML
2010 Microchip Technology Inc.
DS70138G-page 27
dsPIC30F3014/4013
3.1.1
DATA ACCESS FROM PROGRAM
MEMORY USING TABLE
INSTRUCTIONS
This architecture fetches 24-bit wide program memory.
Consequently,
instructions
are
always
aligned.
However, 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
Space Visibility”). The TBLRDL and TBLWTL instruc-
tions offer a direct method of reading or writing the lsw
of any address within program space, without going
through data space. The TBLRDH and TBLWTH instruc-
tions 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 MS Data Byte.
Figure 3-3 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.
A set of table instructions are provided to move byte or
word-sized data to and from program space. (See
1.
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.
2.
TBLWTL:
Table Write Low (refer to Section 5.0
“Flash Program Memory” for details on Flash
programming)
3.
TBLRDH:
Table Read High
Word: Read the most significant word (msw) of
the program address; P<23:16> maps to D<7:0>;
D<15:8> will 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.
4.
TBLWTH:
Table Write High (refer to Section 5.0
“Flash Program Memory” for details on Flash
Programming)
FIGURE 3-4:
PROGRAM DATA TABLE ACCESS (LEAST SIGNIFICANT WORD)
0
8
16
PC Address
0x000000
0x000002
0x000004
0x000006
23
00000000
Program Memory
‘Phantom’ Byte
(read as ‘0’)
TBLRDL.W
TBLRDL.B (Wn<0> = 1)
TBLRDL.B (Wn<0> = 0)
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