VersaLogic VL-586-1, Reference Manual

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Memory Configuration
VL-586-1 Reference Manual Configuration – 23
CMOS RAM C
ONFIGURATION
Jumper V6[1-2] (top position) can be briefly used to erase the contents of the CMOS RAM
should it become necessary to do so.
Table 5: CMOS RAM Jumpers
Jumper
Block
Description
As
Shipped
V6[1-2] CMOS RAM Erase
In — Erases CMOS RAM and Real Time Clock contents
Out — Normal operation (V6[2-3] must be in)
Out
V6[2-3] CMOS RAM Power
In — Connects power to CMOS RAM and Real Time Clock circuits
Out — Power disconnected
In
B
ATTERY
B
ACKED
SRAM C
ONFIGURATION
Jumper V5 provides a means to disconnect power to the Battery Backed SRAM chip. This
jumper is for factory use only.
Table 6: CMOS RAM Jumpers
Jumper
Block
Description
As
Shipped
V5[1-2] Battery Backed SRAM Power Note! V5 is for factory use only.
In — Power applied to Battery Backed SRAM
Out — Power removed from Battery Backed SRAM
Varies