ICS1893 Datasheet, PDF (108/152 Pages) Integrated Circuit Systems – 3.3-V 10Base-T/100Base-TX Integrated PHYceiver™

ICS1893 Data Sheet - Release
Chapter 9 Pin Diagram, Listings, and Descriptions
Table 9-3. PHY Address and LED Pins
Pin
Pin
Pin
Name Number Type
Pin Description
P2LI
60 Input or PHY (Address Bit) 2 / Link Integrity LED.
Output For more information on this pin, see Section 6.8, “Status Interface”.
• This multi-function configuration pin is:
– An input pin during either a power-on reset or a hardware reset. In
this case, this pin configures the address of the ICS1893 when it is in
either hardware mode or software mode.
– An output pin following reset. In this case, this pin provides link status
for the ICS1893.
As an input pin:
• This pins establishes the address for the ICS1893. When the signal on
this pin is logic:
– Low, that address bit is set to logic zero.
– High, that address bit is set to logic one.
P3TD
As an output pin:
• When the signal on this pin is:
– De-asserted, this state indicates the ICS1893 does not have a link.
– Asserted, this state indicates the ICS1893 has a valid link.
Caution: This pin must not float. (See the notes at Section 9.3.2,
“Multi-Function (Multiplexed) Pins: PHY Address and LED
Pins”.)
62 Input or PHY (Address Bit) 3 / Transmit Data LED.
Output For more information on this pin, see Section 6.8, “Status Interface”.
• These multi-function configuration pins are:
– Input pins during either a power-on reset or a hardware reset. In this
case, these pins configure the address of the ICS1893 when it is in
either hardware mode or software mode.
– Output pins following reset. In this case, this pin provides link status
for the ICS1893.
As an input pin:
• This pin establishes the address for the ICS1893. When the signal on
one of these pins is logic:
– Low, that address bit is set to logic zero.
– High, that address bit is set to logic one.
As an output pin:
• When the signal on this pin is:
– De-asserted, this state indicates the ICS1893 does not have a link.
– Asserted, this state indicates the ICS1893 has a valid link.
Caution: This pin must not float. (See the notes at Section 9.3.2,
“Multi-Function (Multiplexed) Pins: PHY Address and LED
Pins”.)
ICS1893 Rev C 6/6/00
Copyright © 2000, Integrated Circuit Systems, Inc.
All rights reserved.
108
June, 2000