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Table of Contents. Virtual Server also supports mapping to real floppy dec 21140 a drives or to floppy drive images. These ports can be mapped to the host computer's serial ports.

DEC 21140 or DFE500TX

Therefore, many add-on serial cards do not work with Virtual Server. Configuring an RD Licensing Server. Deploying a ServerBased Desktop. Deploying a Single Application. Disaster Recovery.

MINIX 3 Hardware Requirements

In late or earlymany manufactures switched to a new type of media interface chip, called an "MII". Try Findchips PRO for dec Dec 21140 a Ethernet adapter cards use the Tulip chip.

Here is a non exhaustive list of adapters which support this driver :. Preface 2. Network Task Structure and Data Flow 3. Networking Driver 3.


Introduction 3. Learn about the network device 3.

InfoWorld - Google Books

Understand the network scheduling conventions 3. Network Driver Makefile 3. Suomi - Suomi. Sverige - Svenska. United Kingdom - English.

dec 21140 a On Intel PC target, we were faced with a problem of memory cache management. Because the DEC chip uses the host memory to store the incoming frame and because the DEC configuration registers are mapped into the PCI address space, we must ensure that the data read or written by the host processor are the ones written or read by the DEC device in the host memory and not old data stored in the cache memory. Therefore, we had to provide a way to manage the cache. On Intel, the memory region cache management is available only if the paging unit is enabled.

We have used this paging mechanism, with 4Kb page. All the buffers allocated to store the incoming or outcoming frames, buffer descriptor and also the PCI dec 21140 a space of dec 21140 a DEC board are located in a memory space with cache disable. Concerning the buffers and their descriptors, we have tried to optimize the memory space in term of allocated page. One buffer has bytes, one descriptor has 16 bytes. This allows not to lose too much memory or not to disable cache memory for a page which contains other data than buffer, which could decrease performance. Print Rate this content. DEAA It auto-negotiates and auto-detects. The minimum requirements are Unix version 3. Prior to version 4.This board includes an Ethernet controller based on a DEC chip.

PCI card using this DEC chip, we have decided to first implement this driver on an Intel. December While DIGITAL believes the information included in this publication is correct as of the date of publication, it is subject to change without notice.

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