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        SODIMM-sized SBC packs PXA270, I/O

        Jonathan Angel | Date: Aug 15, 2007 | Comments: 1


        [Updated Aug. 21] -- Embedded board-maker Arcom has introduced its first SODIMM-sized single-board computer (SBC). Although the "Quantum," based on a Marvell XScale PXA270 processor, is not currently supported on Windows CE, a BSP (board-support package) for the OS "is on the way," a spokesperson said.



        Arcom says the component-like Quantum SBC can eliminate "the work and risk involved in the more complex design elements associated with the processing core and operating system," thereby allowing developers to focus on designing carrier boards containing application-specific functions and interfaces.


        Arcom's Quantum SODIMM-sized SBC
        (Click to enlarge)

        The board's PXA270 processor is clocked at either 312 or 520 MHz. Onboard memory includes 64 MB of SDRAM, 256 KB of SRAM, and either 32 or 64 MB of flash. Signals are also provided for interfacing with SD/MMC and CF cards. I/O interfaces include five serial ports, USB host and device interfaces, and an optional Ethernet piggyback module. A JTAG debug and test interface is also provided.

        Specifications include:
        • Processor -- Marvell XScale PXA270, clocked at 312 or 520 MHz
        • Memory:
          • 64 MB SDRAM
          • 256 KB SRAM
          • 32 MB flash (64 MB optional)
        • Video:
          • Interfaces with STN and TFT displays, at up to 640 x 480 pixel resolution
          • 4-wire analog resistive touchscreen support
        • Audio:
          • AC '97 compatible
          • line-in/out, mic interfaces
        • Networking -- optional module mounts onto the IDE connector to provide a 10/100 Ethernet port with RJ45 connector
        • Other I/O ports:
          • 3 x standard serial ports
          • 2 x high speed serial ports
          • 2 x SSP (synchronous serial protocol) ports (e.g. for SPI support)
          • Up to 78-bit GPIO
          • 1 x USB 1.1 host port
          • 1 x USB 1.1 host/device port
          • 2 x PWM outputs
          • I2C interface
        • Expansion:
          • 3.3V IDE interface
          • MMC/SD/SDIO interface
          • CompactFlash interface
        • Power supply -- 3.3 VDC input voltage, maximum 1.6 W power consumption
        • Dimensions -- 2.66 x 1.96 inches (67.6 x 50 mm)
        • Operating temperature -- -20 to +70 degrees C
        According to spokesperson Steven Soendker, Windows CE support for the Quantum is still in development; in the meantime, however, a BSP for Linux is available now. The company also reportedly offers a development baseboard for the SBC; the baseboard is said to support all of the Quantum's I/O, as well as various memory card and wireless device add-ons.

        Pricing and availability details were not disclosed.


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