ICS1893AFLF Datasheet, PDF (103/136 Pages) Integrated Device Technology – 3.3-V 10Base-T/100Base-TX Integrated PHYceiver™

ICS1893AF Data Sheet - Release
Chapter 9 Pin Diagram, Listings, and Descriptions
Table 9-6. PHY Address and LED Pins
Pin
Name
P3TD
Pin
Number
6
Pin
Type
Input or
Output
Pin Description
PHY (Address Bit) 3 / Transmit Data LED.
For more information on this pin, see Section 6.5, “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 ICS1893AF PHY
Address Bit 3.
– Output pins following reset. In this case, this pin provides indication
of Transmit activity.
As an input pin:
• This pin establishes the address for the ICS1893AF. 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.
P4RD
As an output pin:
• When the signal on this pin is:
– De-asserted, this state indicates the ICS1893AF does not have
Transmit activity.
– Asserted, this state indicates the ICS1893AF has Transmit activity.
Caution: This pin must not float. (See the notes at Section 9.2.2,
“Multi-Function (Multiplexed) Pins: PHY Address and LED
Pins”.)
8
Input or PHY (Address Bit) 4 / Receive Data LED.
Output For more information on this pin, see Section 6.5, “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 ICS1893AF when it is in either
hardware mode or software mode.
– An output pin following reset. In this case, this pin provides activity
status of the ICS1893.
An an input pin:
• This pin establishes the address for the ICS1893AF. 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.
As an output pin:
• When the signal on this pin is:
– De-asserted, this state indicates the ICS1893AF does not have
Receive activity.
– Asserted, this state indicates the ICS1893AF has Receive activity.
Caution: This pin must not float. (See the notes at Section 9.2.2,
“Multi-Function (Multiplexed) Pins: PHY Address and LED
Pins”.)
ICS1893AF, Rev. D 10/26/04
Copyright © 2004, Integrated Circuit Systems, Inc.
All rights reserved.
103
October, 2004