ICS1893CF datasheet(86/126 Pages) ICST

86 / 126 page

ICS1893CF, Rev. F, 03/01/07

Mar. 2007

Chapter 8 Pin Diagram, Listings, and Descriptions

ICS1893CF Data Sheet - Release

Note: Each of these pins monitor the data link by providing signals that directly drive LEDs.

Table 8-5. PHY Address and LED Pins

Name

Number

Type

Pin Description

P0AC

Input or

Output

PHY (Address Bit) 0 / Activity LED.

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

Input or

Output

PHY (Address Bit) 1 / Collision LED.

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”.)

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