Electronic Design

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Dual-Processor SoC Streamlines Secure VoIP Designs Secure voice over Internet protocol (VoIP) requires IPsec support like that found in Renesas' 200-MHz, 32-bit SH7710 system-on-a-chip (SoC). The SH7710 also includes an SH3-DSP CPU core to handle software codec support. The IPsec hardware accelerates DES, 3DES, MD5 (message digest 5), and SHA-1 (secure hash algorithm 1). The chip has two serial channels, three timer channels, a pair of 10/100-Mbit/s Ethernet controllers, and a dedicated DMA controller with a 14-kbyte FIFO. The SH7710, priced at $20, comes in a 256-pin HQFP or 256-pin CSP.


Arm-Based Reference Design Targets Portable Media Players Sharp Microelectronics has come up with a pair of reference designs based on the Arm9-based Sharp LH7A404 system-on-a-chip. One design is based on the 2.2-in., 176-by-220 QCIF+ resolution A-Si transflective LCD display. The other uses a 3.6-in., A-Si transmissive, 320-by-240 landscape display. Both incorporate USB 2.0 High Speed and Secure Digital/MultiMediaCard support. The designs support WMV and MPEG4 video formats as well as popular audio formats.

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16-Bit MCU Gains Full-Featured RTOS The Renesas Technology H8S/2377 microcontroller unit (MCU) can now access the Nucleus real-time operating system (RTOS) from Accelerated Technology, the Embedded Systems Division of Mentor Graphics Corp. Software support includes the code|lab Embedded Development Suite. A C/C++ compiler and the code|lab Debug software come with the suite. The Nucleus Net software includes a TCP/IP stack. Nucleus software begins at $12,495. The code|lab Embedded Developer Suite starts at $3495 per seat.


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