COM20022 View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

MFG CO.

COM20022

10Mbps ARCNET controller with 2Kx8 on-board RAM

SMSC -> Microchip 

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Acknowledgements

An Acknowledgement is used to acknowledge

reception of a packet or as an affirmative

response to FREE BUFFER ENQUIRIES and is

sent by the following sequence:

!" An ALERT BURST

!" An ACK (ACKnowledgement--ASCII code

86H) character

ALERT BURST

ACK

Negative Acknowledgements

A Negative Acknowledgement is used as a

negative response to FREE BUFFER ENQUIRIES

and is sent by the following sequence:

!" An ALERT BURST

!" A NAK (Negative Acknowledgement--ASCII

code 15H) character

ALERT BURST

NAK

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