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參數(shù)資料
| 型號(hào)： | TMS320F2801X |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | Digital Signal Processors |
| 中文描述： | 數(shù)字信號(hào)處理器 |
| 文件頁(yè)數(shù)： | 36/140頁(yè) |
| 文件大?。?/td> | 1108K |
| 代理商： | TMS320F2801X |
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3.2
Brief Descriptions
3.2.1
C28x CPU
3.2.2
Memory Bus (Harvard Bus Architecture)
3.2.3
Peripheral Bus
3.2.4
Real-Time JTAG and Analysis
TMS320F2809, TMS320F2808, TMS320F2806
TMS320F2802, TMS320F2801
TMS320C2802, TMS320C2801, and TMS320F2801x DSPs
SPRS230J–OCTOBER 2003–REVISED SEPTEMBER 2007
The C28x DSP generation is the newest member of the TMS320C2000 DSP platform. The C28x is a
very efficient C/C++ engine, hence enabling users to develop not only their system control software in a
high-level language, but also enables math algorithms to be developed using C/C++. The C28x is as
efficient in DSP math tasks as it is in system control tasks that typically are handled by microcontroller
devices. This efficiency removes the need for a second processor in many systems. The 32 x 32-bit MAC
capabilities of the C28x and its 64-bit processing capabilities, enable the C28x to efficiently handle higher
numerical resolution problems that would otherwise demand a more expensive floating-point processor
solution. Add to this the fast interrupt response with automatic context save of critical registers, resulting in
a device that is capable of servicing many asynchronous events with minimal latency. The C28x has an
8-level-deep protected pipeline with pipelined memory accesses. This pipelining enables the C28x to
execute at high speeds without resorting to expensive high-speed memories. Special branch-look-ahead
hardware minimizes the latency for conditional discontinuities. Special store conditional operations further
improve performance.
As with many DSP type devices, multiple busses are used to move data between the memories and
peripherals and the CPU. The C28x memory bus architecture contains a program read bus, data read bus
and data write bus. The program read bus consists of 22 address lines and 32 data lines. The data read
and write busses consist of 32 address lines and 32 data lines each. The 32-bit-wide data busses enable
single cycle 32-bit operations. The multiple bus architecture, commonly termed Harvard Bus, enables the
C28x to fetch an instruction, read a data value and write a data value in a single cycle. All peripherals and
memories attached to the memory bus will prioritize memory accesses. Generally, the priority of memory
bus accesses can be summarized as follows:
Highest:
Data Writes
Program Writes
Data Reads
Program Reads
Fetches
(Simultaneous data and program writes cannot occur on the memory bus.)
(Simultaneous data and program writes cannot occur on the memory bus.)
(Simultaneous program reads and fetches cannot occur on the memory bus.)
(Simultaneous program reads and fetches cannot occur on the memory bus.)
Lowest:
To enable migration of peripherals between various Texas Instruments (TI) DSP family of devices, the
280x devices adopt a peripheral bus standard for peripheral interconnect. The peripheral bus bridge
multiplexes the various busses that make up the processor Memory Bus into a single bus consisting of 16
address lines and 16 or 32 data lines and associated control signals. Two versions of the peripheral bus
are supported on the 280x. One version only supports 16-bit accesses (called peripheral frame 2). The
other version supports both 16- and 32-bit accesses (called peripheral frame 1).
The 280x implements the standard IEEE 1149.1 JTAG interface. Additionally, the 280x supports real-time
mode of operation whereby the contents of memory, peripheral and register locations can be modified
while the processor is running and executing code and servicing interrupts. The user can also single step
through non-time critical code while enabling time-critical interrupts to be serviced without interference.
The 280x implements the real-time mode in hardware within the CPU. This is a unique feature to the
280x, no software monitor is required. Additionally, special analysis hardware is provided which allows the
user to set hardware breakpoint or data/address watch-points and generate various user-selectable break
events when a match occurs.
Functional Overview
36
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參數(shù)描述 |
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| TMS320F2801ZGMA | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 32-Bit Digital Sig Controller w/Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| TMS320F2801ZGMS | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 32-Bit Digital Sig Controller w/Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| TMS320F280200DAS | 功能描述:32位微控制器 - MCU Piccolo Micro controller RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| TMS320F280200DAT | 功能描述:32位微控制器 - MCU Piccolo Micro controller RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| TMS320F280200PTS | 功能描述:32位微控制器 - MCU Piccolo Micro controller RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
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