ICS1893CF Data Sheet Rev. J - Release
Chapter 8 Pin Diagram, Listings, and Descriptions
Table 8-5. PHY Address and LED Pins
Pin
Pin
Pin
Pin Description
Name Number
Type
P2LI
4
Input or PHY (Address Bit) 2 / Link Integrity LED.
Output For more information on this pin, see Section 5.5, “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 address of the ICS1893CF PHY
Address Bit 2.
– An output pin following reset. In this case, this pin provides link status
for the ICS1893CF.
As an input pin:
• This pins establishes the address for the ICS1893CF. 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 ICS1893CF does not have a
link.
– Asserted, this state indicates the ICS1893CF has a valid link.
Caution: This pin must not float. (See the notes at Section 8.2.2,
“Multi-Function (Multiplexed) Pins: PHY Address and LED
Pins”.)
P3TD
6
Input or PHY (Address Bit) 3 / Transmit Data LED.
Output For more information on this pin, see Section 5.5, “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 ICS1893CF 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 ICS1893CF. 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 ICS1893CF does not have
Transmit activity.
– Asserted, this state indicates the ICS1893CF has Transmit activity.
Caution: This pin must not float. (See the notes at Section 8.2.2,
“Multi-Function (Multiplexed) Pins: PHY Address and LED
Pins”.)
ICS1893CF, Rev. J, 08/11/09
August, 2009
Copyright © 2009, Integrated Device Technology, Inc.
All rights reserved.
87
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
