Electronic Design

Power-Efficient Programmable DSP Taps New-Generation Core

The TMS320C5510 is the first DSP device derived from Texas Instruments' third-generation core, the TMS320C55X. Aimed at applications with limited power budgets, the TMS320C5510 consumes only 80 mW at 160 MHz for 320 MIPS of processing performance.

Key peripherals surround the C55X DSP core. It's packed with a 32-bit external memory interface (EMIF), three full-duplex multichannel buffered serial ports, and an enhanced host-port interface (EHPI). A six-channel DMA controller, two general-purpose timers, eight general-purpose I/O pins, and a clock generator are included as well.

The C5510 features 160 kwords of SRAM and 16 kwords of ROM on-chip. It also provides 24 kbytes of instruction-cache memory space. The maximum addressable external memory space is 8 Mwords. The on-board memories minimize off-chip memory accesses to further cut power consumption while improving data throughout.

The EMIF provides glueless access to both asynchronous and high-speed synchronous memories. The three multichannel buffered serial ports each support up to 128 channels with a maximum speed of 100 Mbits/s. Also, the DMA controller permits two accesses per clock cycle to increase the EHPI throughput by an order of magnitude over previous-generation parallel-port interfaces.

Fully supported by the eXpressDSP real-time software-development platform, the TMS320C5510 comes in a 240-pad, 15- by 15-mm micro BGA package. Sampling is under way. Production quantities are slated for the fourth quarter. The 400-MIPS C5510 costs $40 each in 10,000-unit batches. 600- and 800-MIPS derivatives are in the works as well.

Texas Instruments Inc., Semiconductor Group, SC-00071, Literature Response Center, P.O. Box 954, Santa Clara, CA 91380; (800) 477-8924, ext. 4500; www.ti.com.

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