ABB 70PR05B-ES HESG332204R0001模块
CPU插槽VMIVME-7750 CPU插槽在工厂安装了高速奔腾III处理器。CPU速度和RAM/闪存大小由用户指定，作为VMIVME-7750订购信息的一部分。要更改CPU速度、RAM大小或闪存大小，请联系客户服务以获得退货授权（RMA）。物理内存VMIVME-7750提供同步DRAM（SDRAM）作为板载系统内存。内存可以以字节、单词或长单词的形式访问。VMIVME-7750接受一个144针SDRAM SODIMM，最大容量为512 MB。板载DRAM通过PCI到VME桥接器双端口连接到VME总线，可由本地处理器寻址，也可由另一个VMEbus主机访问VMEbus从属接口。在本地处理器和VMEbus之间共享内存时必须小心，以防止VMEbus主机覆盖本地处理器的操作系统。
CPU Socket
The VMIVME-7750 CPU socket is factory populated with a high-speed Pentium III
processor. The CPU speed and RAM/flash size are user specified as part of the
VMIVME-7750 ordering information.
To change CPU speeds, RAM size or flash size contact customer service to receive a
Return Material Authorization (RMA).Physical Memory
The VMIVME-7750 provides Synchronous DRAM (SDRAM) as on-board system
memory. Memory can be accessed as bytes, words or longwords.
The VMIVME-7750 accepts one 144-pin SDRAM SODIMM for a maximum capacity of
512 Mbytes. The on-board DRAM is dual-ported to the VME bus through the
PCI-to-VME bridge and is addressable by the local processor, as well as the VMEbus
slave interface by another VMEbus master. Caution must be used when sharing
memory between the local processor and the VMEbus to prevent a VMEbus master
from overwriting the local processor’s operating system.
