參數(shù)資料
型號： TMDXCNCD28069ISO
廠商： Texas Instruments
文件頁數(shù)： 99/174頁
文件大?。?/td> 0K
描述： EVAL PICCOLO CONTROLCARD
標準包裝： 1
系列： TMS320F2806x, Piccolo™, C2000™
主要目的： 接口，RS232，GPIO
嵌入式： 是，MCU，32 位
已用 IC / 零件： TMS320F2806x
已供物品： 板
SPRS698D – NOVEMBER 2010 – REVISED DECEMBER 2012
2.5
Brief Descriptions
2.5.1
CPU
The 2806x (C28x) family is a member of the TMS320C2000 microcontroller (MCU) platform. The C28x-
based controllers have the same 32-bit fixed-point architecture as existing C28x MCUs. Each C28x-based
controller, including the 2806x device, is a very efficient C/C++ engine, enabling users to develop not only
their system control software in a high-level language, but also enabling development of math algorithms
using C/C++. The device is as efficient at MCU math tasks as it is at 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 64-bit processing capabilities enable the controller to handle higher
numerical resolution problems efficiently. 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 device has an 8-level-deep protected pipeline with pipelined memory accesses. This
pipelining enables it 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.
2.5.2
Control Law Accelerator (CLA)
The C28x control law accelerator is a single-precision (32-bit) floating-point unit that extends the
capabilities of the C28x CPU by adding parallel processing. The CLA is an independent processor with its
own bus structure, fetch mechanism, and pipeline. Eight individual CLA tasks, or routines, can be
specified. Each task is started by software or a peripheral such as the ADC, ePWM, eCAP, eQEP, or CPU
Timer 0. The CLA executes one task at a time to completion. When a task completes the main CPU is
notified by an interrupt to the PIE and the CLA automatically begins the next highest-priority pending task.
The CLA can directly access the ADC Result registers, ePWM+HRPWM, eCAP, and eQEP registers.
Dedicated message RAMs provide a method to pass additional data between the main CPU and the CLA.
30
Device Overview
Copyright 2010–2012, Texas Instruments Incorporated
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