Motorola MVME2700 Series Servisní příručka stáhnout pdf (Strana 106)

3-8 Computer Group Literature Center Web Site

Functional Description

ROM. That is, the value 08003E2xxxxx is stored in NVRAM. At an

address of $FFFC1F2C, the upper four bytes (08003E2x) can be read. At

an address of $FFFC1F30, the lower two bytes (xxxx) can be read. The

MVME2700 debugger (the PPCBug firmware) has the capability to

retrieve or set the Ethernet station address.

Note The unique Ethernet address is set at the factory and should not

be changed. Any attempt to change this address may create node

or bus contention and thereby render the board inoperable.

If the data in NVRAM is lost, use the number on the label in the PMC

connector keepout area to restore it.

For the pin assignments of the transition module AUI or

10BaseT/100BaseTX connector, refer to the user’s manual for the

MVME712M or MVME761. Refer to the BBRAM/TOD Clock memory

map description in the MVME2600/2700 Series Single Board Computer

Programmer’s Reference Guide for detailed programming information.

PCI Mezzanine Interface

A key feature of the MVME2700 family is the PCI (Peripheral Component

Interconnect) bus. In addition to the on-board local bus devices (SCSI,

Ethernet, graphics, etc.), the PCI bus supports an industry-standard

mezzanine interface, IEEE P1386.1 PMC (PCI Mezzanine Card).

PMC modules offer a variety of possibilities for I/O expansion through

FDDI (Fiber Distributed Data Interface), ATM (Asynchronous Transfer

Mode), graphics, Ethernet, or SCSI ports. The base board supports PMC

front panel and rear P2 I/O. There is also provision for stacking a PMC

carrier board on the base board for additional expansion.

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Motorola MVME2700 Series Servisní příručka Strana 106