PXA270 EPIC Computer with Power Over Ethernet & Six Serial Protocols by Micro/sys, Inc.

Evaluation Board/Reference Designs, etc.

Product Description

OVERVIEW:
The SBC4670 brings the PXA270 ARM processor to an EPIC form-factor. The efficient XScale board has a maximum 720mA power draw at its full 520MHz speed. This low power draw enables the board to be powered by Power Over Ethernet technology. Other optional serial protocols supported on the SBC4670 include socket modem for GSM/GPRS or Bluetooth wireless, industry standard CAN, GPS, five serial ports, and 10/100 BASE-T Ethernet. Extended temperature operation is available. With up to 64MB of linear flash and 128MB of SDRAM, complex operating systems such as Linux and WindowsCE can run completely from soldered-on memory. Alternatively, the CompactFlash connector allows users other run time options. For control applications, the onboard I/O includes 24 lines of digital I/O, three timer/counters, LCD support, debounced keypad interface, audio interface, and optional 14-bit A/D and D/A. Additional I/O can be plugged onto the SBC4670 using the PC/104 connector.

TECHNICAL DETAILS:
The SBC4670 core is a PXA270 XScale RISC processor running at up to 520MHz allowing with 32-bit operating systems. Peripherals include USB, interrupt controller, (3) 16C550 UARTs, watchdog timer, CAN v2.0 (parts A and B) and SDRAM controller. The LCD interface supports STN, DSTN, and TFT panels up to 800 x 600 pixels. The 6 keypad inputs are debounced for digital I/O if not needed for switches. An 82C55 digital I/O device provides an additional 24 lines of TTL I/O. Direction is programmable in two 8-bits groups and two 4-bit groups. The 82C55 TTL I/O lines can source and sink 2.5mA. An onboard 82C54 device provides (3) 16-bit timer/counters. The audio interface has line-level inputs and outputs and uses a standard AC97 CODEC. The memory subsystem includes 128MB SDRAM, 64MB Flash memory (contains bootloader, operating system, and user app space), and CompactFlash interface. 5 serial ports allow communication with multiple devices. COM1-COM5 are 16C550-compatible UARTs (with transmit and receive FIFOs). 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 SBC4670 provides 8 analog inputs configurable for 5V or 10V ranges. Sampling can be configured via jumpers to be triggered by external input, onboard pacer clock, or GPS PPS output. If the GPS is used for triggering, multiple boards at various locations can have their data acquisition synchronized to within 190ns. The 14-bit analog outputs have full-scale output range of 0V to 5V. GPS has a PPS clock that is accurate to 95ns for synchronizing data acquisition. The Power Over Ethernet option provides all the necessary IEEE 802.3af functions. The Universal Socket is capable of being populated with a SocketModem GSM/GPRS, SocketModem CDMA, or a SocketWireless Bluetooth option.

PXA270 EPIC Computer with Power Over Ethernet & Six Serial Protocols

Market Segment(s)

• Embedded

Target Platform(s)

• Linux
• Windows Embedded CE

ARM Processor(s)

• Cortex-A53
• Cortex-A57
• ARMv8
• XScale

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