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The SBC1670 packs a fast XScale RISC processor with lots of memory into a PC/104-sized board. The efficient, industry standard ARM architecture allows the SBC1670 to draw little power at its full 520MHz clock speed. This reduces power supply and cooling requirements. Onboard I/O includes LCD support, a debounced keypad interface, five serial ports, 10/100BASE-T Ethernet, USB,and CompactFlash.
In its stackthrough version, the SBC1670 is an ideal computer to plug into a custom OEM I/O card. Immediately and easily, an advanced engine is available for software development.
With up to 64MB of onboard linear flash, and 128MB of SDRAM, many complex operating systems, such as Linux and Windows CE can be run. However, if additional storage capacity is required, the CompactFlash connector allows hundreds of megabytes of removable storage.
And, if additional capabilities are needed, PC/104 expansion allows a wide variety of I/O cards to be stacked on the SBC1670.
The SBC1670 core is an PXA270 XScale processor running at up to 520MHz. This variation of the industry-standard ARM architecture is a RISC processor that is designed for low-power operation and still supports many user-interface options.
The PXA270 allows compatibility with 32-bit operating systems. The PXA270 also integrates many peripherals. A host USB port, an interrupt controller, three 16C550 UARTs, a watchdog timer, and an SDRAM controller are all present.
Complex user interface needs can be met with the built-in LCD interface, keypad inputs, and audio I/O. The LCD interface supports STN, DSTN, and TFT panels up to 800 x 600 pixels. The six keypad inputs are debounced and can be used for digital I/O if not needed for switches. The audio interface has line level inputs and outputs and uses a standard AC97 CODEC.
The memory subsystem on the SBC1670 allows many programs to be run without any external storage. 128 Mbytes of synchronous DRAM (SDRAM) is more than sufficient for many complex programs and operating systems. The 64-Mbyte Flash memory contains the bootloader, operating system, and user application code space. A portion of the flash can be allocated as a read/write flash drive. If a larger program or data storage space is required, or if removability is needed, the CompactFlash interface can provide hundreds of megabytes of storage.
Five serial ports allow communication with many different devices. COM1 through COM5 are 16C550-compatible UARTs (with transmit and receive FIFOs). Of these serial ports, COM1-COM4 have RS-232 transceivers, and have RTS and CTS modem control lines. COM5 is set up for half-duplex RS-485 communication with jumperable termination resistors.
The SBC1670 supports 32-bit operating systems such as Linux and Windows CE. All have full tool suites available, including compilers and debuggers.