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I.L. 01-50419-00
Cutler-Hammer
173 Heatherdown Drive
P.O. Box 6166
Westerville, OH 43081
TEL: (614)-882-3282
FAX: (614)-895-7111
www.cutlerhammer.eaton.com
Effective 05/98
Printed in U.S.A.
The following information describes how to configure
the memory card for use within a NetSolver
application.
Memory Type
Even though the SRAM PC 104 Battery Backed
Memory Card supports SRAM, EPROM and FLASH
memory chips, the retentive memory driver only uses
SRAM.
Each memory card has six 32-pin sockets to house the
memory chips. The sockets are divided into two banks
(three sockets each). Bank 0 is controlled by SW1 and
Bank 1 is controlled by SW3. Bank 0 is supplied with
384K memory.
Settings for SW1:
Closed/Open/Closed/Closed – Battery on, SRAM 128k
Settings for SW3:
Open/Closed/Closed/Closed – Battery off, bank
disabled
Memory Address
There are only three possible regions of memory. If all
three regions conflict with other hardware, the memory
card cannot be used, and as a result, the retentive
memory driver cannot be used. The NetSolver
standard address is 0xD0000 – 0xD3FFF. This
address is also the default setting for the SRAM
PC104 Battery Backed Memory Card. Setting the
memory address id is done using SW2 positions 1 and
2.
Settings for SW2 (positions 1 & 2):
Closed/Open D0000-D3FFF
I/O Address
I/O address selection is done using SW2 positions 3
and 4. Four possible I/O addresses are available. If all
four addresses conflict with other I/O in the computer,
the retentive memory driver may not be used. The
NetSolver standard address is 2DC – 2DD.
Note that the SW2 positions 5 and 6 are unused by the
retentive memory driver.
Settings for SW2 (positions 3 & 4):
Open/Open 2DC-2DD
Board Level Jumpers
There are eight JP jumpers to configure. The first three
jumpers (JP1, JP2 and JP3) have three posts and the
remainder have two posts.
•
JP1 and JP2 are used for FLASH memory and
must be turned off (jumper posts 2 & 3).
