CS8920A Просмотр технического описания (PDF) - Cirrus Logic

Номер в каталоге

Компоненты Описание

производитель

CS8920A

Crystal LAN ISA Plug-and-Play Ethernet Controller

Cirrus Logic 

CS8920A

Terms Specific to the CS8920A (continued)

PacketPage

A unified, highly-efficient method of controlling and getting status of a peripheral controller in

I/O or Memory space.

Standby

A feature of the CS8920A used to conserve power. When in Standby mode, the CS8920A can

be awakened either by 10BASE-T activity or host command.

StreamTransfer

A method used to significantly reduce the number of interrupts to the host processor during

block data transfers (Patent Pending).

Suspend

A feature of the CS8920A used to conserve power. When in Suspend mode, the CS8920A can

be awakened only by host command.

Transfer

The term "transfer" refers to moving frame data across the ISA bus to or from the CS8920A.

Transmit Request

A Transmit Request is issued by the host to initiate the start of a new packet transmission. A

Transmit Request consists of the following three steps in exactly the order shown:

1. The host writes a Transmit Command to the TxCMD register (PacketPage base + 0144h).

2. The host writes the transmit frame’s length to the TxLength register (PacketPage base +

0146h).

3. The host reads BusST (Register 18) to see in the Rdy4TxNOW bit (Bit 8) is set.

WakeUp Frame

A specific Ethernet frame that enables an NIC to signal the PC power management to power

up the PC.

Sub-Terms Specific to the CS8920A Used at the End of the Term

These terms have meaning only at the end of a term;

A

Accept

CMD

Command

CFG

Configure

CTL

Control

Dis

Disable

142

DS238PP2

Share Link: