Texas Instruments has announced four new processors – the TMS320C6742, TMS320C6746, TMS320C6748 and OMAP-L138 – with advanced connectivity options and fixed- and floating-point capabilities that are also said to be the industry’s lowest-power floating-point digital signal processors (DSPs).
Featuring a combination of application-tuned features and peripherals, these devices reduce overall system cost for a wide spectrum of products including industrial, communications, medical diagnostics and audio. For instance, power protection systems benefit from the OMAP-L138 device’s fixed/floating-point DSP, ARM9, Ethernet MAC (EMAC) and LCD controller. For applications that need high-speed data transfer and high-capacity storage, such as test and measurement, public safety radios, music effects and intelligent occupancy sensors, the processors feature a universal parallel port (uPP) and are also the first TI devices with an integrated serial advanced technology attachment (SATA) interface.
With performance levels up to 300 MHz, these products offer the ability to manage on-chip power through dynamic voltage and frequency scaling (DVFS) and multiple power-down modes. When coupled with TI power management software and complementary analog solutions, developers can optimise their system for performance and power without having to be an energy expert. To ease and reduce development time, the new offerings are pin-for-pin compatible and code compatible with all TMS320C6000 devices and complemented by a low-cost experimenter board and full-featured evaluation module (EVM).
The C6742, C6746 and C6748 DSPs consume just 420 mW total power and 7 mW at 1,0 V in standby mode. EMAC, multimedia card/secure digital (MMC/SD) and high-speed USB 2.0/1.1 communications are included for desktop, network or portable connectivity or storage. A video port interface provides the ability to input/output raw video while an LCD controller allows developers to connect video graphics array (VGA) resolution displays. Multiple operating points are facilitated through DVFS, powering off unused peripherals and selectable I/O voltages. 128 KB to 448 KB on-chip memory is supplied to reduce external memory access and power usage.
The OMAP-L138 features a dual-core processor that builds on the C6748 DSP with a 300 MHz ARM9, giving developers the flexibility to add human machine interfaces, touch screens or networking capability to their applications. The ARM9 allows developers to implement high-level operating systems such as Linux.
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