PC/104 MULTIFUNCTION I/O EIO1-PC/104
The EIO1-PC/104 is a multifunction I/O board with 512 Kbyte FLASH solid state disk option (expandable up to 2 Mbyte in 512 Kbyte steps) for PC/104 expandable embedded systems. The board offers 2 serial ports (jumper selectable to COM1, COM2, COM3 or COM4), 1 LPT port (base address jumper selectable) and 1 IDE/HDD interface with 44-pin connector.

The EIO1-PC/104 serial communication controller is an improved version of the 16C450 or 16C550 (FIFO option - see ordercodes) UART with higher speed. It has two independent, double buffered, asynchronous channels that are NS 8250 compatible with on-chip software programmable baud rate generators selectable through 115,200 bits per second.

The EIO1-PC/104 is shipped in a standard configuration that supports RS232C for the serial ports without the FLASH solid state disk and the IDE/HDD interface. Only +5 VDC is required for the board since the MAX241 chips are used which generates the plus and minus voltages for the RS232C serial ports. Optionally, RS422 or RS485 electrical levels can be supported by the serial ports. Each serial port interrupt request is jumper selectable on the PC/104 bus interrupts IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7, IRQ10, IRQ11, IRQ12, IRQ14 or IRQ15.

The EIO1 offers connectors for 8-bit (J1) or 16-bit PC/104 (J1/J2), serial port COMa (RS232C, RS422 or RS485), serial port COMb (RS232C, RS422 or RS485), parallel port LPT, factory setup, and the IDE/HDD interface.

EIO1 Technical Data
  • Two serial ports. RS232C, RS422 or RS485
  • Jumper selectable to COM1, COM2, COM3 or COM4
  • One parallel printer port (LPT port)
  • LPT port base address jumper selectable
  • FLASH solid state disk (SSD)
  • SSD size up to 2 Mbyte in 512 Kbyte steps
  • One IDE/HDD port with 44-pin connector
  • 8/16-bit PC/104 interface
  • only +5 VDC power
  • 80 mA current at 5 VDC
  • Operating temp. 0° to +70° C
  • Storage temp. -55° to +85° C
  • 5% to 95% relative humidity n/c

EIO1 Ordering Information
PC/104 MULTIFUNCTION I/O EIO1-PC/104. 2 COM ports (COMa, COMb) with 16C450 or 16C550 compatible UARTs. COM port jumpers for address and interrupt selection: COMa= COM1, COM2, COM3 or disable. COMb= COM1, COM2, COM4 or disable. 1 parallel printer port (LPT). LPT port jumper for address and interrupt selection: LPT= 3BCh, 378h, 278h or disable. IDE/HDD controller option with 44-pin/2 mm connector.FLASH solid state disk (SSD) option with 4 PLCC- 32 sockets for AMD 29F040 FLASH chips, up to 2 Mbyte in 512 Kbyte steps, bootable. EMBEDDED FLASH FILE SYSTEM option. 8-bit PC/104 interface/connector (see options for 16-bit PC/104 interface/ connector). PC/104 size 90 * 96 mm. Only +5VDC power.

Ordercode COMa COMb PC/104 FLASH SSD IDE/HDD I/F
EIO1104-10-10 RS232C RS232C 8-BIT NO NO
EIO1104-20-10 RS422 RS232C 8-BIT NO NO
EIO1104-30-10 RS485 RS232C 8-BIT NO NO
EIO1104-10-20 RS232C RS422 8-BIT NO NO
EIO1104-20-20 RS422 RS422 8-BIT NO NO
EIO1104-30-20 RS485 RS422 8-BIT NO NO
EIO1104-10-30 RS232C RS485 8-BIT NO NO
EIO1104-20-30 RS422 RS485 8-BIT NO NO
EIO1104-30-30 RS485 RS485 8-BIT NO NO

Ordercode Option
EIO1104-16 16-bit PC/104 interface/connector.
EIO1104-IDE IDE/HDD interface/connector. Includes EIO1104-OPT-16.
EIO1104-FIFO Serial controller with two 16C550 compatible UARTs.
EIO1104-SSD FLASH SSD controller,one 512 Kbyte 29F040 FLASH chip.
EIO1104-FFS EMBEDDED FLASH FILE SYSTEM for FLASH SSD.
SSV SOFTWARE SYSTEMS PC/104 Products. EIO1. File: P4.HTM, Last Update: 02-March-1997
Copyright (c) 1996, 1997 WST. All rights reserved.