ICS1893AF Data Sheet - Release
Chapter 9 Pin Diagram, Listings, and Descriptions
Table 9-6. PHY Address and LED Pins
Pin
Pin
Pin
Pin Description
Name Number
Type
P1CL 3
Input or PHY (Address Bit) 1 / Collision 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 PHY Address Bit 1.
– An output pin following reset. In this case, this pin provides collision
status for the ICS1893AF.
As 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 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 detect any
collisions.
– Asserted, this state indicates the ICS1893AF detects collisions.
• The ICS1893AF asserts its Collision LED for a period of approximately
70 msec when it detects a collision.
Caution: This pin must not float. (See the notes at Section 9.2.2,
“Multi-Function (Multiplexed) Pins: PHY Address and LED
Pins”.)
P2LI
4
Input or PHY (Address Bit) 2 / Link Integrity 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 address of the ICS1893AF PHY
Address Bit 2.
– An output pin following reset. In this case, this pin provides link status
for the ICS1893AF.
As an input pin:
• This pins 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 a
link.
– Asserted, this state indicates the ICS1893AF has a valid link.
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
October, 2004
Copyright © 2004, Integrated Circuit Systems, Inc.
All rights reserved.
102
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
