386EX PC/104 Single Board Computer

Datalight's ROM-DOS is a low-cost 'workalike' of MS-DOS 6.22, with extra features for the embedded environment. The PC/104 format is an industrial form factor measuring 3.8” x 3.5” (96mm x 90mm).

End-of-life Notice: It is Arcom’s policy to inform customers prior to final production to allow a managed migration to a new product or, to allow you to order sufficient product to maintain your long term production. Arcom has now issued a Product Notice (APN) as notification of the planned End-of-Life (EOL) for this standard product and all custom derivatives. Click here for further details.

Standard peripheral I/O ports on the module include a 16-bit PC/104 interface; a 50-way right-angle ribbon header for serial I/O and battery connections; and a 10-way header for TTL I/O (eg keypad).

Onboard peripheral functions include four serial comms ports - configured as three RS232 ports (two 16450 and one 16550), plus one non-isolated RS485 port (16550). The maximum supported rate is 115Kbaud. The AIM104-386EX also includes a 10-way header for TTL I/O for connection to simple push-button keypads or alpha-numeric displays.

For time and date, AIM104-386EX has a Dallas DS1302 Real-Time Clock, which can be backed-up by an off-board battery (typically 1µA at 3.6V). RTC operation under ROM-DOS is Y2K-compliant. The on-board 500millisec event timer is used to interrupt power-down mode. It can trigger periodic recovery from power-down mode, allowing a low average current consumption. The onboard programmable watchdog timer is used for general reset. System reset will occur if the watchdog timer is allowed to time-out. The time-out period is set to 6 seconds. An enhanced 5V monitor/reset circuit provides full power-down and brown-out protection. A user-assigned jumper link provides a simple level of configuration for the application software.

The utility disks, supplied with the module, includes ‘C’ library routines for setting-up and controlling the module for users who prefer not to use the ROM-DOS environment.

Product Selection Guide: Arcom produces a wide range of standard embedded processor platforms and associated software development kits. To help you compare the key features of these products and make the best choice for your application, please check out our Selection Guide.

Design Services
Arcom offers a Custom Design and Build service to create cost effective solutions derived from our standard products. If you need a fully integrated and tested system, a custom single board solution or an alternative configuration for the VIPER-Lite, please contact our Sales team to discuss your requirements.