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TMS320C6743 定点/浮点数字信号处理器

数据:

描述

C6743器件是一款基于C674x DSP内核的低功耗数字信号处理器。与TMS320C6000™DSP平台的其他成员相比,该器件的功耗显着降低。

C6743器件使原始设备制造商(OEM)和原始设计制造商(ODM)能够快速推向市场高处理性能。

C6743 DSP内核采用基于缓存的两级架构。 1级程序高速缓存(L1P)是32 KB直接映射高速缓存,1级数据高速缓存(L1D)是32 KB双向组关联高速缓存。 Level 2程序缓存(L2P)由128 KB的内存空间组成,在程序和数据空间之间共享。 L2内存可以配置为映射内存,缓存或两者的组合。

外设集包括:带管理数据输入/输出(MDIO)模块的10/100 Mbps以太网MAC(EMAC);两个I 2 C总线接口;两个带有14/9串行器和FIFO缓冲器的多通道音频串行端口(McASP);两个64位通用定时器,每个都可配置(一个可配置为看门狗);多达8个16引脚的通用输入/输出(GPIO),具有可编程中断/事件生成模式,与其他外设复用;两个UART接口(一个具有 RTS CTS );三个增强型高分辨率脉冲宽度调制器(eHRPWM)外设;三个32位增强型捕获(eCAP)模块外设,可配置为3个捕获输入或3个辅助脉冲宽度调制器(APWM)输出;两个32位增强型正交编码脉冲(eQEP)外设;和2个外部存储器接口(EMIF):用于较慢存储器或外设的异步外部存储器接口(EMIFA),以及用于SDRAM的高速存储器接口(EMIFB)。

以太网媒体访问控制器(EMAC)提供C6743和网络之间的有效接口。 EMAC支持10Base-T和100Base-TX,或半双工或全双工模式下的10 Mbps和100 Mbps。此外,MDIO接口可用于PHY配置。

丰富的外设集可以控制外部外围设备并与外部处理器通信。有关每个外围设备的详细信息,请参阅本文档后面的相关章节以及相关的外围设备参考指南。

特性

  • Applications
    • Networking
    • High-Speed Encoding
    • Professional Audio™
  • Software Support
    • TI DSP/BIOS™
    • Chip Support Library and DSP Library
  • 375-MHz TMS320C674x Fixed- and Floating-Point VLIW DSP Core
    • Load-Store Architecture with Nonaligned Support
    • 64 General-Purpose Registers (32-Bit)
    • Six ALU (32- and 40-Bit) Functional Units
      • Supports 32-Bit Integer, SP (IEEE Single Precision/32-Bit) and DP (IEEE Double Precision/64-Bit) Floating Point
      • Supports up to Four SP Additions Per Clock, Four DP Additions Every 2 Clocks
      • Supports up to Two Floating Point (SP or DP) Reciprocal Approximation (RCPxP) and Square-Root Reciprocal Approximation (RSQRxP) Operations Per Cycle
    • Two Multiply Functional Units
      • Mixed-Precision IEEE Floating Point Multiply Supported up to:
        • 2 SP x SP -> SP Per Clock
        • 2 SP x SP -> DP Every Two Clocks
        • 2 SP x DP -> DP Every Three Clocks
        • 2 DP x DP -> DP Every Four Clocks
      • Fixed-Point Multiply Supports Two 32 x 32-Bit Multiplies, Four 16 x 16-Bit Multiplies, or Eight 8 x 8-Bit Multiplies per Clock Cycle, and Complex Multiples
    • Instruction Packing Reduces Code Size
    • All Instructions Conditional
    • Hardware Support for Modulo Loop
      Operation
    • Protected Mode Operation
    • Exceptions Support for Error Detection and Program Redirection
  • C674x Instruction Set Features
    • Superset of the C67x+ and C64x+ ISAs
    • 3000 MIPS and 2250 MFLOPS C674x
    • Byte-Addressable (8-, 16-, 32-, and 64-Bit Data)
    • 8-Bit Overflow Protection
    • Bit-Field Extract, Set, Clear
    • Normalization, Saturation, Bit-Counting
    • Compact 16-Bit Instructions
  • C674x Two-Level Cache Memory Architecture
    • 32KB of L1P Program RAM/Cache
    • 32KB of L1D Data RAM/Cache
    • 128KB of L2 Unified Mapped RAM/Cache
    • Flexible RAM/Cache Partition (L1 and L2)
  • Enhanced Direct Memory Access Controller 3 (EDMA3):
    • 2 Transfer Controllers
    • 32 Independent DMA Channels
    • 8 Quick DMA Channels
    • Programmable Transfer Burst Size
  • 3.3-V LVCMOS I/Os
  • Two External Memory Interfaces:
    • EMIFA
      • NOR (8-Bit-Wide Data)
      • NAND (8-Bit-Wide Data)
    • EMIFB
      • 16-bit SDRAM, up to 128MB
  • Two Configurable 16550-Type UART Modules:
    • UART0 with Modem Control Signals
    • 16-Byte FIFO
    • 16x or 13x Oversampling Option
  • One Serial Peripheral Interface (SPI) with One Chip Select
  • Multimedia Card (MMC)/Secure Digital (SD)
  • Two Master and Slave Inter-Integrated Circuit (I2C Bus™)
  • Programmable Real-Time Unit Subsystem (PRUSS)
    • Two Independent Programmable Real-Time Unit (PRU) Cores
      • 32-Bit Load-Store RISC Architecture
      • 4KB of Instruction RAM per Core
      • 512 Bytes of Data RAM per Core
      • PRUSS can be Disabled Through Software to Save Power
      • Register 30 of each PRU is Exported from the Subsystem in Addition to the Normal R31 Output of the PRU Cores
    • Standard Power-Management Mechanism
      • Clock Gating
      • Entire Subsystem Under a Single PSC Clock Gating Domain
    • Dedicated Interrupt Controller
    • Dedicated Switched Central Resource
  • Two Multichannel Audio Serial Ports (McASPs):
    • Supports TDM, I2S, and Similar Formats
    • FIFO Buffers for Transmit and Receive
  • 10/100 Mbps RMII Ethernet Media Access Controller (EMAC):
    • IEEE 802.3 Compliant (3.3-V I/O Only)
    • RMII Media-Independent Interface
    • Management Data I/O (MDIO) Module
  • One 64-Bit General-Purpose Timer (Configurable as Two 32-Bit Timers)
  • One 64-Bit General-Purpose Watchdog Timer (Configurable as Two 32-Bit Timers)
  • Three Enhanced Pulse Width Modulators (eHRPWMs):
    • Dedicated 16-Bit Time-Base Counter with Period and Frequency Control
    • 6 Single Edge, 6 Dual Edge Symmetric, or 3 Dual Edge Asymmetric Outputs
    • Dead-Band Generation
    • PWM Chopping by High-Frequency Carrier
    • Trip Zone Input
  • Three 32-Bit Event Capture (eCAP) Modules:
    • Configurable as 3 Capture Inputs or 3 Auxiliary Pulse Width Modulator (APWM) Outputs
    • Single-Shot Capture of up to Four Event Time-Stamps
  • Two 32-Bit Enhanced Quadrature Encoder Pulse (eQEP) Modules
  • 256-Ball Pb-Free Plastic Ball Grid Array (PBGA) [ZKB Suffix], 1.0-mm Ball Pitch
  • 176-Pin Thin Quad Flat Pack (TQFP) [PTP Suffix], 0.5-mm Pin Pitch
  • Commercial or Automotive Temperature

参数 与其它产品相比 音频处理器

 
DSP
DSP MHz (Max)
Arm CPU
Operating Systems
DRAM
On-Chip L2 Cache/RAM
Approx. Price (US$)
Operating Temperature Range (C)
McASP
McBSP
USB
EMAC
Package Group
PCI/PCIe
I2C
UART (SCI)
DSP MMACS
Other Hardware Acceleration
TMS320C6743
1 C674x    
200
375    
N/A    
TI RTOS    
SDRAM    
128 KB    
8.55 | 1ku    
-40 to 125
0 to 90    
2    
0    
0    
10/100    
BGA
HLQFP    
N/A    
2    
2    
3000    
PRU-ICSS    

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