参数资料
型号: DSPIC30F5015-30I/PT
厂商: Microchip Technology
文件页数: 50/129页
文件大小: 0K
描述: IC DSPIC MCU/DSP 66K 64TQFP
产品培训模块: dsPIC30F Quadrature Encoder Interface
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
标准包装: 160
系列: dsPIC™ 30F
核心处理器: dsPIC
芯体尺寸: 16-位
速度: 30 MIP
连通性: CAN,I²C,SPI,UART/USART
外围设备: 高级欠压探测/复位,电机控制 PWM,QEI,POR,PWM,WDT
输入/输出数: 52
程序存储器容量: 66KB(22K x 24)
程序存储器类型: 闪存
EEPROM 大小: 1K x 8
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 2.5 V ~ 5.5 V
数据转换器: A/D 16x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 64-TQFP
包装: 托盘
产品目录页面: 651 (CN2011-ZH PDF)
配用: XLT64PT5-ND - SOCKET TRAN ICE 64MQFP/TQFP
AC164319-ND - MODULE SKT MPLAB PM3 64TQFP
DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE
其它名称: DSPIC30F501530IPT
2008 Microchip Technology Inc.
DS70149D-page 27
dsPIC30F5015/5016
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
instructions offer a direct method of reading or writing
the least significant word 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 that contains the least significant
word, and TBLRDH and TBLWTH access the space that
contains the MSB.
Figure 3-2 shows how the EA is created for table
operations 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.
1.
TBLRDL: Table Read Low
Word: Read the least significant word 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 6.0
“Flash Program Memory” for details on Flash
Programming).
3.
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
is = 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 6.0
“Flash Program Memory” for details on Flash
Programming).
FIGURE 3-3:
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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