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KONTRON
6. System Memory
The
coolMONSTER/PM
supports
184-pin
modules.
Two
sockets
are
available
unbuffered double data rate synchronous dynamic random access
memory (DDR-SDRAM) up to 1024MB following Intel's DDR266/PC2100
Specification.
The supported devices on the DDR-SDRAM module must be 128-Mbit,
256-Mbit or 512-Mbit technologies chips. All modules validated
by Intel with the 845 chipset and minimum DDR266 speed are
electrical
ready
with
the
855
interface is used on the two chipsets.)
Notes: Some older modules and modules out of specification are designed for 2.7V
(power level). These modules may not work well at the coolMONSTER/PM.
The total amount of memory available on the DDR-SDRAM modules is
used for main memory and graphics memory on the coolMONSTER/PM.
Unified Memory Architecture (UMA) manages the sharing of the
system memory between the graphics controller and processor.
Full
system
memory
size
is
applications. Up to 32MB of system memory are used for graphics
memory.
JRex-PM User's Guide
19
DIMM
DDR-SDRAM
memory
for
2.5V
(power
level),
chipset
(A
similar
memory
not
available
for
software
System Memory
7. PISA Bus
PISA® is the proven space saving concept that provides full PCI
and ISA Bus signals on just half-size Slot boards. The edge card
connector provides the ISA signals on the upper row and the PCI
signals on the lower row and uses the same connector known from
EISA systems.
A
detailed
description
of
the
characteristics is beyond the scope of this document. Refer to
the PISA specification PISAD??? (the three questionmarks holding
the revision number) available on the Kontron web sites and the
official ISA- and PCI-specifications for further details.
Keyboard and Mouse Interfaces
20
KONTRON
signals
and
its
timing
coolMONSTER/PM User's Guide
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