FANUC Robotics America V7865* - Manual (Page 42)

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V7865 Product Manual
BGA CPU
The V7865 CPU is factory populated with a high-speed Core Duo Processor CPU.
The CPU speed and RAM/CompactFlash size are user specified as part of the V7865
ordering information.
To change CPU speeds, RAM size or CompactFlash size contact Customer Care to
receive a Return Material Authorization (RMA) at [email protected].
GE Fanuc Embedded Systems Customer Care is available at: 1-800-GEFANUC
(1-800-433-2682), 1-780-401-7700.
Or email us at [email protected]
Physical Memory
The V7865 provides DDR2 Synchronous DRAM (SDRAM) as onboard system
memory. Memory can be accessed as bytes, words or longwords.
The V7865 has a maximum memory configuration of 3GB of DDR2 SDRAM memory.
This configuration calls for a 2GB SODIMM (one 200-pin SODIMM DDR2 module)
and 1GB of onboard memory. The SDRAM is dual-ported to the VME through the
PCI-to-VME bridge and is addressable by the local processor, as well as the VME slave
interface by another VME master. Caution must be used when sharing memory
between the local processor and the VME to prevent a VME deadlock and to prevent a
VME master from overwriting the local processor’s operating system.
NOTE: When using the Configure utility of GE Fanuc Embedded Systems’ IOWorks
Access to configure RAM, do not request more than 25 percent of the physical RAM.
Exceeding the 25 percent limit may result in known bugs that causes unpredictable
behavior during the boot sequence, and requires the use of an emergency repair disk
to restore the computer. It is recommended that an emergency repair disk be kept
up-to-date and easily accessible.
The V7865 includes 32KB of non-volatile SRAM which can be accessed by the CPU at
any time, and is used to store system data that must not be lost during power-off
conditions.
NOTE: Memory capacity may be extended as parts become available.