• 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 ShiftIn/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, I 2C], L3, L4, Ethernet, GFX [SGX530], LCD Pixel Clock)
