ICS1893 Datasheet, PDF (121/152 Pages) Integrated Circuit Systems – 3.3-V 10Base-T/100Base-TX Integrated PHYceiver™

ICS1893 - Release
Chapter 9 Pin Diagram, Listings, and Descriptions
9.3.5 Reserved Pins
Table 9-8 lists the reserved pins.
Table 9-8. Reserved Pins
Pin
Name
NC
Pin
Number
20
Pin
Type
–
Pin Description
No Connect.
• This pin is always reserved for use by ICS.
• Depending on the interface that is used, some of the MAC/Repeater
interface pins can also be no-connects. For pins that are no connects
when the interface is the:
– 100M Symbol Interface, see Section 9.3.4.2, “MAC/Repeater
Interface Pins for 100M Symbol Interface”.
– 10M Serial Interface, see Section 9.3.4.3, “MAC/Repeater Interface
Pins for 10M Serial Interface”.
Caution: Pins designated as ‘no-connect’pins must not be connected,
as connecting them can affect the performance of the
ICS1893.
ICS1893 Rev C 6/6/00
Copyright © 2000, Integrated Circuit Systems, Inc.
All rights reserved.
121
June, 2000