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CM-X255
is a 3rd
version of original ARMCORE module and has several major improvements relative to the previous version.
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The
ethernet
controller has been changed. The new controller uses a local bus interface rather than
the PCI
interface implemented in the previous version. Therefore, it doesn't require
an Interface Bridge chip. This change significantly reduces the
implementation cost of ethernet port.
-
Added
touchscreen controller, for resistive touch panels.
-
Improved
display performance. The previous version suffered from an unbalanced
sharing of on-board resources, that under certain circumstances
led to display underrun, appeared as "noise" on the LCD
panel. This problem has been
significantly reduced in GX version.
-
Rearranged
components' placement, for two benefits: (1) Ability to insert
the module into baseboards with three CAMI connectors, (2) Total
height reduced by 1.7mm, by moving high components to bottom
side.
Effective
from 01-Sep-2005 (12 months V3 introduction), CompuLab will
discontinue sales and support of version 2 (CM-X255V2). All designs must use
CM-X255 version 3.
Naming
convention: version 2, which originally got the "ARMCORE" name, has been
renamed "CM-X255V2", while the name of the new version
described above is "CM-X255". In order to avoid confusion, the buyer
must specify the proper new name when ordering CM-X255 modules.
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