AM3874 Sitara Processor: Arm Cortex-A8, HDMI, 3D Graphics |

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Sitara Processor: Arm Cortex-A8, HDMI, 3D Graphics



AM387x Sitara ARM processors are highly integrated, programmable platforms that leverage the Sitara processor technology.

The device enables Original-Equipment Manufacturers (OEMs) and Original-Design Manufacturers (ODMs) to quickly bring to market devices featuring robust operating systems support, rich user interfaces, and high processing performance through the maximum flexibility of a fully integrated mixed processor solution. The device also combines programmable ARM processing with a highly integrated peripheral set.

The AM387x Sitara ARM processors also present OEMs and ODMs with new levels of processor scalability and software reuse. An OEM or ODM who used the AM387x processors in a design and can make a similar product with added features could scale up to the pin-compatible and software-compatible TMS320DM814x processors from TI. The TMS320DM814x DaVinci video processors add a powerful C674x core DSP along with a video encoder and decoder to the hardware on the AM387x. Additionally, OEMs or ODMs that have used the AM387x or DM814x processors and find a need for a faster ARM and/or DSP core performance could scale up to the software-compatible AM389x or TMS320DM816x devices with higher core speeds.

Programmability is provided by an ARM Cortex-A8 RISC CPU with Neon extension. The ARM processor lets developers keep control functions separate from algorithms programmed on coprocessors, thus reducing the complexity of the system software. The ARM Cortex-A8 32-bit RISC core with Neon floating-point extension includes: 32KB of instruction cache; 32KB of data cache; 512KB of L2 cache; 48KB of boot ROM; and 64KB of RAM.

The AM387x Sitara ARM processors also include an SGX530 3D graphics engine to off-load many graphics processing tasks from the ARM core, making more ARM MIPS available for common processing tasks on algorithms. Additionally, the AM387x processor has a complete set of development tools for the ARM which include C compilers and a Microsoft Windows debugger interface for visibility into source code execution.


  • High-Performance Sitara™ ARM® Processors
    • ARM Cortex®-A8 Core
      • ARMv7 Architecture
        • In-Order, Dual-Issue, Superscalar Processor Core
        • Neon™ Multimedia Architecture
        • Supports Integer and Floating Point
        • Jazelle® RCT Execution Environment
    • ARM Cortex-A8 Memory Architecture
      • 32KB of Instruction and Data Caches
      • 512KB of L2 Cache
      • 64KB of RAM, 48KB of Boot ROM
    • 128KB of On-Chip Memory Controller (OCMC) RAM
    • Imaging Subsystem (ISS)
      • Camera Sensor Connection
        • Parallel Connection for Raw (up to 16-Bit) and BT.656 or BT.1120 (8- and 16-Bit)
      • Image Sensor Interface (ISIF) for Handling Image and Video Data From the Camera Sensor
      • Resizer
        • Resizing Image and Video From 1/16x to 8x
        • Generating Two Different Resizing Outputs Concurrently
    • Media Controller
      • Controls the HDVPSS and ISS
    • SGX530 3D Graphics Engine
      • Delivers up to 25 MPoly/sec
      • Universal Scalable Shader Engine (USSE™)
      • Direct3D Mobile, OpenGLES 1.1 and 2.0, OpenVG 1.0, OpenMax API Support
      • Advanced Geometry DMA-Driven Operation
      • Programmable HQ Image Anti-Aliasing
    • Endianness
      • ARM Instructions and Data – Little Endian
    • HD Video Processing Subsystem (HDVPSS)
      • Two 165-MHz, 2-channel HD Video Capture Modules
        • One 16- or 24-Bit Input or Dual 8-Bit SD Input Channels
        • One 8-, 16-, or 24-Bit Input and One 8-Bit Only Input Channels
      • Two 165-MHz HD Video Display Outputs
        • One 16-, 24-, or 30-Bit Output and One 16- or 24-Bit Output
      • Composite or S-Video Analog Output
      • Macrovision® Support Available
      • Digital HDMI 1.3 Transmitter With Integrated PHY
      • Advanced Video Processing Features Such as Scan, Format, Rate Conversion
      • Three Graphics Layers and Compositors
    • Dual 32-Bit DDR2/DDR3 SDRAM Interfaces
      • Supports up to DDR2-800 and DDR3-1066
      • Up to Eight x 8 Devices Comprise 2GB of the Total Address Space
      • Dynamic Memory Manager (DMM)
        • Programmable Multizone Memory Mapping and Interleaving
        • Enables Efficient 2D Block Accesses
        • Supports Tiled Objects in 0°, 90°, 180°, or 270° Orientation and Mirroring
        • Optimizes Interlaced Accesses
    • General-Purpose Memory Controller (GPMC)
      • 8- or 16-Bit Multiplexed Address and Data Bus
      • 512MB of Address Space Divided Among up to 8 Chip Selects
      • Glueless Interface to NOR Flash, NAND Flash (BCH/Hamming Error Code Detection), SRAM and Pseudo-SRAM
      • Error Locator Module (ELM) Outside of GPMC to Provide up to 16-Bit or 512-Byte Hardware ECC for NAND
      • Flexible Asynchronous Protocol Control for Interface to FPGA, CPLD, ASICs, and so Forth
    • Enhanced Direct Memory Access (EDMA) Controller
      • Four Transfer Controllers
      • 64 Independent DMA Channels and 8 Independent QDMA Channels
    • Dual-Port Ethernet (10/100/1000 Mbps) With Optional Switch
      • IEEE 802.3 Compliant (3.3-V I/O Only)
      • MII/RMII/GMII/RGMII Media Independent Interfaces
      • Management Data I/O (MDIO) Module
      • Reset Isolation
      • IEEE 1588 Time-Stamping and Industrial Ethernet Protocols
    • Dual USB 2.0 Ports With Integrated PHYs
      • USB2.0 High- and Full-Speed Clients
      • USB2.0 High-, Full-, and Low-Speed Hosts, or OTG
      • Supports End-point 0–15
    • One PCI-Express 2.0 Port With Integrated PHY
      • Single Port With One Lane at 5.0 GT/s
      • Configurable as Root Complex or End-point
    • Eight 32-Bit General-Purpose Timers (Timer1–Timer8)
    • One System Watchdog Timer (WDT0)
    • Six Configurable UART/IrDA/CIR Modules
      • UART0 With Modem Control Signals
      • Supports up to 3.6864 Mbps UART0/1/2
      • Supports up to 12 Mbps UART3/4/5
      • SIR, MIR, FIR (4.0 MBAUD), and CIR
    • Four Serial Peripheral Interfaces (SPIs) (up to
      48 MHz)
      • Each With Four Chip Selects
    • Three MMC/SD/SDIO Serial Interfaces (up to
      48 MHz)
      • Three Supporting up to 1-, 4-, or 8-Bit Modes
    • Dual Controller Area Network (DCAN) Modules
      • CAN Version 2 Part A, B
    • Four Inter-Integrated Circuit (I2C Bus) Ports
    • Six Multichannel Audio Serial Ports (McASPs)
      • Dual 10 Serializer Transmit and Receive Ports
      • Quad Four Serializer Transmit and Receive Ports
      • DIT-Capable For S/PDIF (All Ports)
    • Multichannel Buffered Serial Port (McBSP)
      • Transmit and Receive Clocks up to 48 MHz
      • Two Clock Zones and Two Serial Data Pins
      • Supports TDM, I2S, and Similar Formats
    • Serial ATA (SATA) 3.0 Gbps Controller With Integrated PHY
      • Direct Interface to One Hard Disk Drive
      • Hardware-Assisted Native Command Queuing (NCQ) from up to 32 Entries
      • Supports Port Multiplier and Command-Based Switching
    • Real-Time Clock (RTC)
      • One-Time or Periodic Interrupt Generation
    • Up to 128 General-Purpose I/O (GPIO) Pins
    • One Spin Lock Module With up to 128 Hardware Semaphores
    • One Mailbox Module With 12 Mailboxes
    • On-Chip ARM ROM Bootloader (RBL)
    • Power, Reset, and Clock Management
      • Multiple Independent Core Power Domains
      • Multiple Independent Core Voltage Domains
      • Support for Three Operating Points (OPP100, OPP120, OPP166) per Voltage Domain
      • Clock Enable and Disable Control for Subsystems and Peripherals
    • 32KB of Embedded Trace Buffer (ETB) and
      5-Pin Trace Interface for Debug
    • IEEE 1149.1 (JTAG) Compatible
    • 684-Pin Pb-Free BGA Package (CYE Suffix),
      0.8-mm Ball Pitch With Via Channel Technology to Reduce PCB Cost
    • 45-nm CMOS Technology
    • 1.8- and 3.3-V Dual Voltage Buffers for General I/O

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    Compare all products in Other Sitara processors Email Download to Excel
    Part number Order Arm MHz (Max.) DRAM Approx. price (US$) Arm CPU Ethernet MAC USB SPI I2C Display Operating temperature range (C) Serial I/O UART
    AM3874 Order now 1000     DDR2
    37.98 | 1ku     1 Arm Cortex-A8     10/100/1000     2     4     4     2 LCD and 1 HDMI 1.3     -40 to 105
    0 to 90    
    AM3871 Samples not available 1000     DDR2
    28.55 | 1ku     1 Arm Cortex-A8     10/100/1000     2     4     4       0 to 90     USB