AM3357 Datasheet PDF - TI

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 contain the subsystems shown in Figure 1-1 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.

● 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 utputs

● 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