ICS1893 Integrated Circuit Systems, ICS1893 Datasheet - Page 107

• Manufacturer Part Number: ICS1893
• Description: 3.3-V 10Base-T/100Base-TX Integrated PHYceiver
• Manufacturer: Integrated Circuit Systems

ICS1893 Rev C 6/6/00
Table 9-3.
P1CL
Name
Pin
ICS1893 - Release
Number
PHY Address and LED Pins
Pin
59
Input or
Output
Type
Pin
Copyright © 2000, Integrated Circuit Systems, Inc.
All rights reserved.
PHY (Address Bit) 1 / Collision LED.
For more information on this pin, see
As an input pin:
As an output pin:
Caution:
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•
•
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This multi-function configuration pin is:
– An input pin during either a power-on reset or a hardware reset. In
– An output pin following reset. In this case, this pin provides collision
This pin, in combination with the 10/100SEL pin, selects the operating
modes of the ICS1893 MAC/repeater Interfaces, either 10M MII, 100M
MII, 10M Serial, or 100M Symbol. When the signal on this pin is logic:
– Low, the ICS1893 configures its MAC/repeater Interface as a Media
– High, the ICS1893 configures its MAC/repeater Interface as a
When the signal on this pin is:
– De-asserted, this state indicates the ICS1893 does not detect any
– Asserted, this state indicates the ICS1893 detects collisions.
The ICS1893 asserts its Collision LED for a period of approximately 70
msec when it detects a collision.
this case, this pin configures the ICS1893 when it is in either
hardware mode or software mode.
status for the ICS1893.
Independent Interface.
Stream Interface (that is, either a 10M Serial Interface or a 100M
Symbol Interface).
collisions.
This pin must not float. (See the notes at
“ Multi-Function (Multiplexed) Pins: PHY Address and LED
Pins”
107
.)
Chapter 9 Pin Diagram, Listings, and Descriptions
Pin Description
Section 6.8, “ Status Interface”
Section 9.3.2,
June, 2000
.