AM3351

(ACTIVE) Sitara Processor: Arm Cortex-A8, 1Gb Ethernet, Display

Diagram

Functional Diagram

Description

The AM335x microprocessors, based on the ARM Cortex-A8 processor, are enhanced with image, graphics processing, peripherals and industrial interface options such as EtherCAT and PROFIBUS. The devices support high-level operating systems (HLOS). Linux® and Android™ are available free of charge from TI.

The AM335x microprocessor contains the subsystems shown in the Functional Block Diagram and a brief description of each follows:

The contains the subsystems shown in the Functional Block Diagram and a brief description of each follows:

The microprocessor unit (MPU) subsystem is based on the ARM Cortex-A8 processor and the PowerVR SGX™ Graphics Accelerator subsystem provides 3D graphics acceleration to support display and gaming effects.

The PRU-ICSS is separate from the ARM core, allowing independent operation and clocking for greater efficiency and flexibility. The PRU-ICSS enables additional peripheral interfaces and real-time protocols such as EtherCAT, PROFINET, EtherNet/IP, PROFIBUS, Ethernet Powerlink, Sercos, and others. Additionally, the programmable nature of the PRU-ICSS, along with its access to pins, events and all system-on-chip (SoC) resources, provides flexibility in implementing fast, real-time responses, specialized data handling operations, custom peripheral interfaces, and in offloading tasks from the other processor cores of SoC.

Features

  • Up to 1-GHz Sitara™ ARM® Cortex®-A8 32‑Bit RISC Processor
    • NEON™ SIMD Coprocessor
    • 32KB of L1 Instruction and 32KB of Data Cache With Single-Error Detection (Parity)
    • 256KB of L2 Cache With Error Correcting Code (ECC)
    • 176KB of On-Chip Boot ROM
    • 64KB of Dedicated RAM
    • Emulation and Debug - JTAG
    • Interrupt Controller (up to 128 Interrupt Requests)
  • On-Chip Memory (Shared L3 RAM)
    • 64KB of General-Purpose On-Chip Memory Controller (OCMC) RAM
    • Accessible to All Masters
    • Supports Retention for Fast Wakeup
  • External Memory Interfaces (EMIF)
    • mDDR(LPDDR), DDR2, DDR3, DDR3L Controller:
      • mDDR: 200-MHz Clock (400-MHz Data Rate)
      • DDR2: 266-MHz Clock (532-MHz Data Rate)
      • DDR3: 400-MHz Clock (800-MHz Data Rate)
      • DDR3L: 400-MHz Clock (800-MHz Data Rate)
      • 16-Bit Data Bus
      • 1GB of Total Addressable Space
      • Supports One x16 or Two x8 Memory Device Configurations
    • General-Purpose Memory Controller (GPMC)
      • Flexible 8-Bit and 16-Bit Asynchronous Memory Interface With up to Seven Chip Selects (NAND, NOR, Muxed-NOR, SRAM)
      • Uses BCH Code to Support 4-, 8-, or 16-Bit ECC
      • Uses Hamming Code to Support 1-Bit ECC
    • Error Locator Module (ELM)
      • Used in Conjunction With the GPMC to Locate Addresses of Data Errors from Syndrome Polynomials Generated Using a BCH Algorithm
      • Supports 4-, 8-, and 16-Bit per 512-Byte Block Error Location Based on BCH Algorithms
  • Programmable Real-Time Unit Subsystem and Industrial Communication Subsystem (PRU-ICSS)
    • Supports Protocols such as EtherCAT®, PROFIBUS, PROFINET, EtherNet/IP™, and More
    • Two Programmable Real-Time Units (PRUs)
      • 32-Bit Load/Store RISC Processor Capable of Running at 200 MHz
      • 8KB of Instruction RAM With Single-Error Detection (Parity)
      • 8KB of Data RAM With Single-Error Detection (Parity)
      • Single-Cycle 32-Bit Multiplier With 64-Bit Accumulator
      • Enhanced GPIO Module Provides Shift-In/Out Support and Parallel Latch on External Signal
    • 12KB of Shared RAM With Single-Error Detection (Parity)
    • Three 120-Byte Register Banks Accessible by Each PRU
    • Interrupt Controller (INTC) for Handling System Input Events
    • Local Interconnect Bus for Connecting Internal and External Masters to the Resources Inside the PRU-ICSS
    • Peripherals Inside the PRU-ICSS:
      • One UART Port With Flow Control Pins, Supports up to 12 Mbps
      • One Enhanced Capture (eCAP) Module
      • Two MII Ethernet Ports that Support Industrial Ethernet, such as EtherCAT
      • One MDIO Port
  • Power, Reset, and Clock Management (PRCM) Module
    • Controls the Entry and Exit of Stand-By and Deep-Sleep Modes
    • Responsible for Sleep Sequencing, Power Domain Switch-Off Sequencing, Wake-Up Sequencing, and Power Domain Switch-On Sequencing
    • Clocks
      • Integrated 15- to 35-MHz High-Frequency Oscillator Used to Generate a Reference Clock for Various System and Peripheral Clocks
      • Supports Individual Clock Enable and Disable Control for Subsystems and Peripherals to Facilitate Reduced Power Consumption
      • Five ADPLLs to Generate System Clocks (MPU Subsystem, DDR Interface, USB and Peripherals [MMC and SD, UART, SPI, I2C], L3, L4, Ethernet, GFX [SGX530], LCD Pixel Clock)
    • Power
      • Two Nonswitchable Power Domains (Real-Time Clock [RTC], Wake-Up Logic [WAKEUP])
      • Three Switchable Power Domains (MPU Subsystem [MPU], SGX530 [GFX], Peripherals and Infrastructure [PER])
      • Implements SmartReflex™ Class 2B for Core Voltage Scaling Based On Die Temperature, Process Variation, and Performance (Adaptive Voltage Scaling [AVS])
      • Dynamic Voltage Frequency Scaling (DVFS)
  • Real-Time Clock (RTC)
    • Real-Time Date (Day-Month-Year-Day of Week) and Time (Hours-Minutes-Seconds) Information
    • Internal 32.768-kHz Oscillator, RTC Logic and 1.1-V Internal LDO
    • Independent Power-on-Reset (RTC_PWRONRSTn) Input
    • Dedicated Input Pin (EXT_WAKEUP) for External Wake Events
    • Programmable Alarm Can be Used to Generate Internal Interrupts to the PRCM (for Wakeup) or Cortex-A8 (for Event Notification)
    • Programmable Alarm Can be Used With External Output (PMIC_POWER_EN) to Enable the Power Management IC to Restore Non-RTC Power Domains
  • Peripherals
    • Up to Two USB 2.0 High-Speed OTG Ports With Integrated PHY
    • Up to Two Industrial Gigabit Ethernet MACs (10, 100, 1000 Mbps)
      • Integrated Switch
      • Each MAC Supports MII, RMII, RGMII, and MDIO Interfaces
      • Ethernet MACs and Switch Can Operate Independent of Other Functions
      • IEEE 1588v2 Precision Time Protocol (PTP)
    • Up to Two Controller-Area Network (CAN) Ports
      • Supports CAN Version 2 Parts A and B
    • Up to Two Multichannel Audio Serial Ports (McASPs)
      • Transmit and Receive Clocks up to 50 MHz
      • Up to Four Serial Data Pins per McASP Port With Independent TX and RX Clocks
      • Supports Time Division Multiplexing (TDM), Inter-IC Sound (I2S), and Similar Formats
      • Supports Digital Audio Interface Transmission (SPDIF, IEC60958-1, and AES-3 Formats)
      • FIFO Buffers for Transmit and Receive (256 Bytes)
    • Up to Six UARTs
      • All UARTs Support IrDA and CIR Modes
      • All UARTs Support RTS and CTS Flow Control
      • UART1 Supports Full Modem Control
    • Up to Two Master and Slave McSPI Serial Interfaces
      • Up to Two Chip Selects
      • Up to 48 MHz
    • Up to Three MMC, SD, SDIO Ports
      • 1-, 4- and 8-Bit MMC, SD, SDIO Modes
      • MMCSD0 has Dedicated Power Rail for 1.8‑V or 3.3-V Operation
      • Up to 48-MHz Data Transfer Rate
      • Supports Card Detect and Write Protect
      • Complies With MMC4.3, SD, SDIO 2.0 Specifications
    • Up to Three I2C Master and Slave Interfaces
      • Standard Mode (up to 100 kHz)
      • Fast Mode (up to 400 kHz)
    • Up to Four Banks of General-Purpose I/O (GPIO) Pins
      • 32 GPIO Pins per Bank (Multiplexed With Other Functional Pins)
      • GPIO Pins Can be Used as Interrupt Inputs (up to Two Interrupt Inputs per Bank)
    • Up to Three External DMA Event Inputs that can Also be Used as Interrupt Inputs
    • Eight 32-Bit General-Purpose Timers
      • DMTIMER1 is a 1-ms Timer Used for Operating System (OS) Ticks
      • DMTIMER4–DMTIMER7 are Pinned Out
    • One Watchdog Timer
    • SGX530 3D Graphics Engine
      • Tile-Based Architecture Delivering up to 20 Million Polygons per Second
      • Universal Scalable Shader Engine (USSE) is a Multithreaded Engine Incorporating Pixel and Vertex Shader Functionality
      • Advanced Shader Feature Set in Excess of Microsoft VS3.0, PS3.0, and OGL2.0
      • Industry Standard API Support of Direct3D Mobile, OGL-ES 1.1 and 2.0, OpenVG 1.0, and OpenMax
      • Fine-Grained Task Switching, Load Balancing, and Power Management
      • Advanced Geometry DMA-Driven Operation for Minimum CPU Interaction
      • Programmable High-Quality Image Anti-Aliasing
      • Fully Virtualized Memory Addressing for OS Operation in a Unified Memory Architecture
    • LCD Controller
      • Up to 24-Bit Data Output; 8 Bits per Pixel (RGB)
      • Resolution up to 2048 × 2048 (With Maximum 126-MHz Pixel Clock)
      • Integrated LCD Interface Display Driver (LIDD) Controller
      • Integrated Raster Controller
      • Integrated DMA Engine to Pull Data from the External Frame Buffer Without Burdening the Processor via Interrupts or a Firmware Timer
      • 512-Word Deep Internal FIFO
      • Supported Display Types:
        • Character Displays - Uses LIDD Controller to Program these Displays
        • Passive Matrix LCD Displays - Uses LCD Raster Display Controller to Provide Timing and Data for Constant Graphics Refresh to a Passive Display
        • Active Matrix LCD Displays - Uses External Frame Buffer Space and the Internal DMA Engine to Drive Streaming Data to the Panel
    • 12-Bit Successive Approximation Register (SAR) ADC
      • 200K Samples per Second
      • Input can be Selected from any of the Eight Analog Inputs Multiplexed Through an 8:1 Analog Switch
      • Can be Configured to Operate as a 4-Wire, 5-Wire, or 8-Wire Resistive Touch Screen Controller (TSC) Interface
    • Up to Three 32-Bit eCAP Modules
      • Configurable as Three Capture Inputs or Three Auxiliary PWM Outputs
    • Up to Three Enhanced High-Resolution PWM Modules (eHRPWMs)
      • Dedicated 16-Bit Time-Base Counter With Time and Frequency Controls
      • Configurable as Six Single-Ended, Six Dual-Edge Symmetric, or Three Dual-Edge Asymmetric Outputs
    • Up to Three 32-Bit Enhanced Quadrature Encoder Pulse (eQEP) Modules
  • Device Identification
    • Contains Electrical Fuse Farm (FuseFarm) of Which Some Bits are Factory Programmable
      • Production ID
      • Device Part Number (Unique JTAG ID)
      • Device Revision (Readable by Host ARM)
  • Debug Interface Support
    • JTAG and cJTAG for ARM (Cortex-A8 and PRCM), PRU-ICSS Debug
    • Supports Device Boundary Scan
    • Supports IEEE 1500
  • DMA
    • On-Chip Enhanced DMA Controller (EDMA) has Three Third-Party Transfer Controllers (TPTCs) and One Third-Party Channel Controller (TPCC), Which Supports up to 64 Programmable Logical Channels and Eight QDMA Channels. EDMA is Used for:
      • Transfers to and from On-Chip Memories
      • Transfers to and from External Storage (EMIF, GPMC, Slave Peripherals)
  • Inter-Processor Communication (IPC)
    • Integrates Hardware-Based Mailbox for IPC and Spinlock for Process Synchronization Between Cortex-A8, PRCM, and PRU-ICSS
      • Mailbox Registers that Generate Interrupts
        • Four Initiators (Cortex-A8, PRCM, PRU0, PRU1)
      • Spinlock has 128 Software-Assigned Lock Registers
  • Security
    • Crypto Hardware Accelerators (AES, SHA, RNG)
    • Secure Boot
  • Boot Modes
    • Boot Mode is Selected Through Boot Configuration Pins Latched on the Rising Edge of the PWRONRSTn Reset Input Pin
  • Packages:
    • 298-Pin S-PBGA-N298 Via Channel Package
      (ZCE Suffix), 0.65-mm Ball Pitch
    • 324-Pin S-PBGA-N324 Package
      (ZCZ Suffix), 0.80-mm Ball Pitch

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Parametrics

Arm MHz (Max.) 300^600    
Serial I/O I2C^SPI^UART^USB    
Co-processor(s)  
Graphics acceleration  
EMAC 10/100/1000    
Industrial protocols  
Security Enabler Cryptographic acceleration^Debug security^Initial secure programming^Secure boot^Software IP protection    
Operating temperature range (C) -40 to 105^0 to 90    
DRAM DDR2^DDR3^DDR3L^LPDDR    
Arm CPU 1 Arm Cortex-A8    
Rating Catalog    
Display 1 LCD    
USB 2.0 1    

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