COM20022I-3.3V Datasheet, PDF (15/73 Pages) SMSC Corporation – 10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Chip RAM

10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Chip RAM
Datasheet
4.6.4 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:
ƒ An ALERT BURST
ƒ An ACK (ACKnowledgement--ASCII code 86H) character
ALERT BURST
ACK
4.6.5 Negative Acknowledgements
A Negative Acknowledgement is used as a negative response to FREE BUFFER ENQUIRIES and is sent
by the following sequence:
ƒ An ALERT BURST
ƒ A NAK (Negative Acknowledgement--ASCII code 15H) character
ALERT BURST
NAK
SMSC COM20022I 3.3V Rev.C
Page 15
DATASHEET
Revision 03-08-07