Overview
The OMAP-L138 C6000 DSP+ARM processor, produced by Texas Instruments, is a low-power applications processor that integrates an ARM926EJ-S core and a C674x DSP core. This dual-core architecture combines the benefits of both DSP and RISC technologies, offering high-performance processing with significantly lower power consumption compared to other members of the TMS320C6000 platform of DSPs. The processor is designed to enable original-equipment manufacturers (OEMs) and original-design manufacturers (ODMs) to quickly develop devices with robust operating systems, rich user interfaces, and high processor performance.
Key Specifications
| Characteristic | Description |
|---|---|
| CPU Cores | ARM926EJ-S and C674x DSP core |
| CPU Frequency | 375 MHz (1.2V) or 456 MHz (1.3V) for both ARM and DSP cores |
| Memory | 128KB of RAM shared memory, 16KB of instruction cache, 16KB of data cache, 8KB of RAM (Vector Table), 256KB of L2 RAM, and 32KB of L1 RAM |
| External Memory Interfaces | Asynchronous and SDRAM external memory interface (EMIFA), DDR2/Mobile DDR controller |
| Peripheral Interfaces | USB 2.0 OTG, USB 1.1 OHCI, 10/100 Mbps Ethernet MAC (EMAC), Serial ATA (SATA) controller, Multichannel Audio Serial Port (McASP), Multichannel Buffered Serial Ports (McBSPs), SPI, I2C, UART |
| Timers and PWM | Three 64-Bit General-Purpose Timers, One 64-Bit General-Purpose or Watchdog Timer, Two Enhanced High-Resolution Pulse Width Modulators (eHRPWM) |
| Capture Modules | Three 32-Bit Enhanced Capture (eCAP) Modules |
| Package | 361-Ball Pb-Free Plastic Ball Grid Array (PBGA) with 0.65-mm or 0.80-mm ball pitch |
| Temperature Range | Commercial, Extended, or Industrial Temperature |
Key Features
- Dual-Core SoC with ARM926EJ-S and C674x DSP cores
- High-performance processing with low power consumption
- Integrated peripherals: USB, Ethernet, SATA, McASP, McBSPs, SPI, I2C, UART
- Enhanced High-Resolution Pulse Width Modulators (eHRPWM) and Enhanced Capture (eCAP) Modules
- Support for multiple memory interfaces: EMIFA, DDR2/Mobile DDR
- Real-Time Clock (RTC) with 32-kHz oscillator and separate power rail
- Up to 9 banks of general-purpose input/output (GPIO) pins
- Video Port Interface (VPIF) for video capture and display
- Universal Parallel Port (uPP) for high-speed parallel interface
Applications
- Professional or Private Mobile Radio (PMR)
- Remote Radio Unit (RRU) and Remote Radio Head (RRH)
- Industrial Automation
- Currency Inspection and Biometric Identification
- Machine Vision (Low-End)
- Smart Grid Substation Protection
- Industrial Portable Navigation Devices
Q & A
- What are the core components of the OMAP-L138 processor?
The OMAP-L138 processor includes an ARM926EJ-S core and a C674x DSP core.
- What are the CPU frequencies of the OMAP-L138?
The CPU frequencies are 375 MHz (1.2V) or 456 MHz (1.3V) for both ARM and DSP cores.
- What types of memory interfaces does the OMAP-L138 support?
The OMAP-L138 supports asynchronous and SDRAM external memory interface (EMIFA) and DDR2/Mobile DDR controller.
- What peripheral interfaces are available on the OMAP-L138?
The available interfaces include USB 2.0 OTG, USB 1.1 OHCI, 10/100 Mbps Ethernet MAC (EMAC), Serial ATA (SATA) controller, McASP, McBSPs, SPI, I2C, and UART.
- What is the package type and temperature range of the OMAP-L138?
The package is a 361-Ball Pb-Free Plastic Ball Grid Array (PBGA) with 0.65-mm or 0.80-mm ball pitch, and it supports Commercial, Extended, or Industrial Temperature ranges.
- What are some of the key applications of the OMAP-L138?
Key applications include Professional or Private Mobile Radio (PMR), Remote Radio Unit (RRU), Industrial Automation, Currency Inspection, Biometric Identification, Machine Vision (Low-End), Smart Grid Substation Protection, and Industrial Portable Navigation Devices.
- Does the OMAP-L138 support real-time clock functionality?
Yes, it includes a Real-Time Clock (RTC) with a 32-kHz oscillator and a separate power rail.
- What is the purpose of the Enhanced Capture (eCAP) Modules?
The eCAP Modules can be configured as 3 capture inputs or 3 auxiliary PWM outputs and support single-shot capture of up to four event timestamps.
- What is the Universal Parallel Port (uPP) used for?
The uPP provides a high-speed parallel interface to FPGAs and data converters, supporting single-data rate or dual-data rate transfers.
- Does the OMAP-L138 support SATA interfaces?
Yes, it includes a Serial ATA (SATA) controller that supports SATA I (1.5 Gbps) and SATA II (3.0 Gbps) with all SATA power-management features.
