Functional Description | System Memory |
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2.8System Memory
System memory for the MVME5500 is provided by one to four banks of ECC synchronous DRAM in two banks. During system initialization, the firmware determines the presence and configuration of each memory bank installed by reading the contents of the serial presence detection (SPD) EEPROM on the board, and another one on the expansion memory module. The system firmware then initializes the
If a PMC module is plugged into PMC slot 1, the memory mezzanine card cannot be used because the PMC module covers the memory mezzanine connector.
2.9PCI Local Buses and Devices
The
The devices on Bus 1 are the
2.9.1Gigabit Ethernet Interface
The MVME5500 provides a Gigabit Ethernet transceiver interface (1000BaseT) using an Intel 82544EI integrated Ethernet device (Ethernet 1). It also supports 100BaseTX and 10BaseT modes of operation. The Ethernet interface is accessed via an
2.9.210/100Mb Ethernet Interface
The 10/100Mb Ethernet interface (Ethernet 2) comes from the
Each Ethernet interface is assigned an Ethernet Station Address. The address is unique for each device. The Ethernet Station Address is displayed on a label affixed to the board. The assembly policy is to assign MAC addresses in such a manner that the higher value MAC address is assigned to Ethernet port 1 and the lower to Ethernet port 2.
In addition, the Gigabit Ethernet address is stored in a configuration ROM interfaced to the 82544EI device, while the 10/100Mb Ethernet address is stored in the
EEPROM.
42 | MVME55006E |