Computer/Embedded Technology


Small and fast Pentium M computer module

19 May 2004 Computer/Embedded Technology

The SM855 is a further product in Digital-Logic's high-performance smartModule series. The new PC module is one of the smallest Pentium M processor modules for industrial applications. It is based on the Intel 855GME chip set with 400 MHz front side bus and uses a Pentium M processor with clock rates of up to 1,6 GHz. Equipped with a 1-Mbyte L2 cache this processor shows a capability comparable with a 2,4 GHz Pentium 4 processor. The main memory of the SM855 can be fitted individually with SODIMM components from 128 MB to 1024 MB of DDR RAM. CPU and memory are mounted exchangeable, but mechanically protected against vibrations and shocks. As all power saving functions of the 855 chip set are supported, the SM855 only consumes between 8 W and 20 W.

Another strength of the module is its powerful graphics equipment. The video controller has two different video outputs, VGA-Analog and DVO/LVDS, to control two different monitors. The standard version further includes six USB-V2.0 ports, an AC97 V2.3 compatible sound interface, a 100/10-Base-T port for fast communication in LANs. In addition, a hardware monitor, all necessary power supplies and advanced ACPI power management functions are integrated.

The PC module is supplied by voltages of 5 V and 3,3 V. It runs under operating systems such as Windows CE/98/2000/NT4, Linux, QNX, and RTXDOS. Equipped with a new Flash BIOS with dual BIOS option the SM855 allows to boot the operating system from different media such as hard disk, floppy disk, USB, IEEE 1394, PC Card, or LAN. The module operates at a standard temperature range of -20°C to +50°C, but operates with a lower clock rate also in the extended temperature range of -40°C to +85°C.



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