ICS1893AFILF datasheet(103/137 Pages) RENESAS

103 / 137 page

Chapter 9

Pin Diagram, Listings, and Descriptions

ICS1893AF, Rev. D 10/26/04

October, 2004

103

ICS1893AF Data Sheet - Release

P3TD

Input or

Output

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.

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”.)

P4RD

Input or

Output

PHY (Address Bit) 4 / Receive Data LED.

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”.)

Table 9-6.

PHY Address and LED Pins

Name

Number

Type

Pin Description

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