Overview
The OMAP-L137 device, produced by Texas Instruments, is a low-power applications processor that integrates a dual-core architecture. It combines an ARM926EJ-S RISC processor core with a TMS320C674x DSP core, offering significant power savings compared to other members of the TMS320C6000 platform of DSPs. This device is designed to enable original-equipment manufacturers (OEMs) and original-design manufacturers (ODMs) to quickly develop and market devices with robust operating systems support, rich user interfaces, and high processing performance. The OMAP-L137 is particularly suited for applications requiring both high-performance processing and low power consumption.
Key Specifications
| Hardware Features | OMAP-L137 |
|---|---|
| Processor Cores | ARM926EJ-S RISC CPU, TMS320C674x DSP core |
| Core Frequencies | 375 MHz (1.2V), 456 MHz (1.3V) |
| Voltage | 1.2V / 1.3V (Core), 3.3 V / 1.8 V (I/O) |
| Package | 256-Ball PBGA (ZKB Suffix), 17 mm x 17 mm, 1 mm pitch |
| External Memory Interfaces | EMIFA (asynchronous, 8/16-bit bus width), EMIFB (SDRAM, 16/32-bit bus width) |
| Timers | Two 64-Bit General Purpose Timers (each configurable as two 32-bit timers or one watchdog timer) |
| UART | Three UART interfaces (one with RTS and CTS flow control) |
| SPI | Two SPI interfaces (each with one hardware chip select) |
| I2C | Two I2C interfaces (both Master/Slave) |
| Ethernet MAC | 10/100 Mbps Ethernet MAC (EMAC), IEEE 802.3 compliant, RMII interface |
| USB | USB 1.1 and USB 2.0 interfaces |
| Other Peripherals | Programmable Real-Time Unit Subsystem (PRUSS), Real-Time Clock, Enhanced Pulse Width Modulators (eHRPWM), Enhanced Capture (eCAP) modules, Enhanced Quadrature Encoded Pulse (eQEP) modules |
Key Features
- Dual-core architecture with ARM926EJ-S RISC CPU and TMS320C674x DSP core, providing benefits of both DSP and RISC technologies.
- Supports up to four single-precision additions per clock and two floating-point reciprocal approximation operations per cycle.
- High-performance processing with low power consumption, making it suitable for power-sensitive applications.
- Rich peripheral set including Ethernet MAC, USB, SPI, I2C, UART, and more, enabling control of external devices and communication with host processors.
- Programmable Real-Time Unit Subsystem (PRUSS) for real-time processing tasks.
- Support for various memory interfaces including SDRAM, asynchronous RAM, and flash memory.
- Integrated audio interfaces such as Multichannel Audio Serial Ports (McASPs) supporting TDM, I2S, and similar formats.
Applications
- A/V Receivers
- Home Theatre Systems
- Automotive Amplifiers
- Professional Audio Equipment
- Soundbars
- Network Streaming Audio Devices
Q & A
- What are the core components of the OMAP-L137 device?
The OMAP-L137 device includes an ARM926EJ-S RISC CPU and a TMS320C674x DSP core.
- What are the operating frequencies of the OMAP-L137 cores?
The cores operate at 375 MHz (1.2V) or 456 MHz (1.3V).
- What types of memory interfaces does the OMAP-L137 support?
The device supports EMIFA for asynchronous and slower memories, and EMIFB for SDRAM.
- Does the OMAP-L137 have Ethernet capabilities?
Yes, it includes a 10/100 Mbps Ethernet MAC (EMAC) with RMII interface and MDIO for PHY configuration.
- What other peripherals are available on the OMAP-L137?
The device includes UART, SPI, I2C, USB, PRUSS, eHRPWM, eCAP, and eQEP modules among others.
- What are some typical applications for the OMAP-L137?
Typical applications include A/V receivers, home theatre systems, automotive amplifiers, professional audio equipment, soundbars, and network streaming audio devices).
- How does the OMAP-L137 manage power consumption?
The OMAP-L137 is designed to consume significantly lower power than other members of the TMS320C6000 platform of DSPs).
- What development tools are available for the OMAP-L137?
The device has a complete set of development tools including C compilers, DSP assembly optimizer, and a Windows debugger interface).
- What is the package type and size of the OMAP-L137?
The device is packaged in a 256-Ball PBGA (ZKB Suffix) with a body size of 17 mm x 17 mm and a 1 mm pitch).
- Is the OMAP-L137 compatible with other ARM processors?
Yes, the ARM926EJ-S core is compatible with other ARM9 CPUs from ARM Holdings plc).
