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AM1705 Sitara 处理器

数据:

描述

AM1705是一款基于ARM926EJ-S的低功耗ARM微处理器。

该设备可用于原始设备制造商(OEM) )和原始设计制造商(ODM)通过完全集成的混合处理器解决方案的最大灵活性,快速将具有强大操作系统,丰富用户界面和高处理器性能的设备推向市场。

ARM926EJ -S是一个32位RISC处理器内核,可执行32位或16位指令并处理32位,16位或8位数据。核心使用流水线操作,以便处理器和内存系统的所有部分可以连续运行。

ARM内核具有协处理器15(CP15),保护模块以及数据和程序存储器管理单元(MMU)表后备缓冲区。 ARM内核具有单独的16KB指令和16 KB数据高速缓存。两个内存块都与虚拟索引虚拟标记(VIVT)进行4向关联。 ARM内核还具有8KB的RAM(向量表)和64KB的ROM。

外设集包括:具有管理数据输入/输出(MDIO)模块的10/100 Mbps以太网MAC(EMAC) ;两个I 2 C总线接口;三个带有串行器和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;三个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:用于较慢存储器或外设的异步和SDRAM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)提供设备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。

I 2 C,SPI和USB2.0端口允许设备轻松控制外围设备和/或与主机处理器通信。

丰富的外设集提供了控制外部外围设备和与外部处理器通信的能力。有关每个外设的详细信息,请参阅本文档后面的相关章节以及相关的外设参考指南。

该器件具有一整套用于ARM处理器的开发工具。这些工具包括C编译器和Windows®调试器接口,用于查看源代码执行情况。

特性

  • 375- and 456-MHz ARM926EJ-S™ RISC Core
    • 32-Bit and 16-Bit (Thumb®) Instructions
    • Single-Cycle MAC
    • ARM Jazelle® Technology
    • Embedded ICE-RT™ for Real-Time Debug
  • ARM9 Memory Architecture
    • 16KB of Instruction Cache
    • 16KB of Data Cache
    • 8KB of RAM (Vector Table)
    • 64KB of ROM
  • Enhanced Direct Memory Access Controller 3 (EDMA3):
    • 2 Transfer Controllers
    • 32 Independent DMA Channels
    • 8 Quick DMA Channels
    • Programmable Transfer Burst Size
  • 128KB of RAM Memory
  • 3.3-V LVCMOS I/Os (Except for USB Interface)
  • Two External Memory Interfaces:
    • EMIFA
      • NOR (8-Bit-Wide Data)
      • NAND (8-Bit-Wide Data)
    • EMIFB
      • 16-Bit SDRAM With 128-MB Address Space
  • Three Configurable 16550-Type UART Modules:
    • UART0 With Modem Control Signals
    • 16-Byte FIFO
    • 16x or 13x Oversampling Option
    • Autoflow Control Signals (CTS, RTS) on UART0 Only
  • Two Serial Peripheral Interfaces (SPIs) Each With One Chip Select
  • 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
    • Standard Power-Management Mechanism
      • Clock Gating
      • Entire Subsystem Under a Single PSC Clock Gating Domain
    • Dedicated Interrupt Controller
    • Dedicated Switched Central Resource
  • Multimedia Card (MMC)/Secure Digital (SD) Card Interface With Secure Data I/O (SDIO)
  • Two Master and Slave Inter-Integrated Circuit (I2C Bus™)
  • USB 2.0 OTG Port With Integrated PHY (USB0)
    • USB 2.0 Full-Speed Client
    • USB 2.0 Full- and Low-Speed Host
    • End Point 0 (Control)
    • End Points 1, 2, 3, and 4 (Control, Bulk, Interrupt, or ISOC) RX and TX
  • Two Multichannel Audio Serial Ports (McASPs):
    • Six Clock Zones and 28 Serial Data Pins
    • Supports TDM, I2S, and Similar Formats
    • FIFO Buffers for Transmit and Receive
  • 10/100 Mbps Ethernet MAC (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 General-Purpose 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 Enhanced Capture (eCAP) Modules:
    • Configurable as 3 Capture Inputs or 3 Auxiliary Pulse Width Modulator (APWM) Outputs
    • Single-Shot Capture of up to Four Event Timestamps
  • Two 32-Bit Enhanced Quadrature Encoder Pulse (eQEP) Modules
  • 176-Pin PowerPAD™ Plastic Quad Flat Pack [PTP suffix], 0.5-mm Pin Pitch
  • Commercial, Industrial, or Extended Temperature

All trademarks are the property of their respective owners.

参数 与其它产品相比 AM1x

 
Arm MHz (Max.)
DRAM
Display
USB
EMAC
SPI
I2C
UART
Operating Temperature Range (C)
Approx. Price (US$)
AM1705 AM1707
375
456    
375
456    
SDRAM     SDRAM    
  1 LCD    
  1    
10/100     10/100    
2     2    
2     2    
3     3    
-40 to 105
-40 to 90
0 to 90    
-40 to 105
-40 to 90
0 to 90    
7.28 | 1ku     7.69 | 1ku    

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