ICS1893CF Data Sheet - Release
Chapter 8 Pin Diagram, Listings, and Descriptions
Note: Each of these pins monitor the data link by providing signals that directly drive LEDs.
Table 8-5. PHY Address and LED Pins
Pin
Pin
Pin
Pin Description
Name Number
Type
P0AC 1
Input or PHY (Address Bit) 0 / Activity 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 ICS1893CF PHY address Bit 0.
– An output pin following reset. In this case, this pin provides indication
of Receive “OR” Transmit activity.
As an input pin:
• This pin 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
activity.
– Asserted, this state indicates the ICS1893CF has activity.
Caution: This pin must not float. (See the notes at Section 8.2.2,
“Multi-Function (Multiplexed) Pins: PHY Address and LED
Pins”.)
P1CL
3
Input or PHY (Address Bit) 1 / Collision 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 ICS1893CF PHY Address Bit 1.
– An output pin following reset. In this case, this pin provides collision
status for the ICS1893CF.
As an input pin:
• This pin 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 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 detect any
collisions.
– Asserted, this state indicates the ICS1893CF detects collisions.
• The ICS1893CF 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 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.
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IDT [ INTEGRATED DEVICE TECHNOLOGY ]
