ICS1892 datasheet(116/148 Pages) ICST

116 / 148 page

ICS1892, Rev. D, 2/26/01

February 26, 2001

116

Chapter 9

Pin Diagram, Listings, and Descriptions

ICS1892 Data Sheet

RXD0

10RD

10M (Serial Interface) Receive Data.

This pin’s description is the same as that given in Table 9-6.

RXD1,

RXD2,

RXD3

–34,

33,

Connect

Receive Data 1–3.

For the 10M Serial Interface, these pins are a no connect. For

more information, see Table 6-2.

RXDV

10RXDV

Output

10M (Serial Interface) Receive Data Valid.

The ICS1892 asserts 10RXDV to indicate to the MAC/repeater

that data is available on the MII Receive Bus (RXD[3:0]). The

ICS1892:

• Asserts 10RXDV after it detects and recovers the

Start-of-Stream delimiter, /J/K/. (For the timing reference,

see Chapter 10.5.6, “MII / 100M Stream Interface:

Synchronous Receive Timing”.)

• De-asserts 10RXDV after it detects either the End-of-Stream

delimiter (/T/R/) or a signal error.

Note: 10RXDV is synchronous with the Receive Data Clock,

10RCLK.

RXER

–

connect

Receive Error.

For the 10M Serial Interface, this pin is a no connect. For more

information, see Table 6-2.

RXTRI

Input

Receive (Interface), Tri-State.

The input on this pin is from a MAC. When the signal on this pin

is logic:

• Low, the MAC indicates that it is not in a tri-state condition.

• High, the MAC indicates that it is in a tri-state condition. In

this case, the ICS1892 acts to ensure that only one PHY is

active at a time.

TXER

–

connect

Transmit Error.

For the 10M Serial Interface, this pin is a no connect. For more

information, see Table 6-2.

TXCLK

10TCLK

10M (Serial Interface) Transmit Clock.

In 10M Serial TXCLK is 10 MHz.

TXD0

10TD

Input

10M (Serial Interface) Transmit Data.

This pin’s description is the same as that given in Table 9-6.

TXD1,

TXD2,

TXD3

–46,

47,

connect

Transmit Data 1–3.

For the 10M Serial Interface, these pins are a no connect. For

more information, see Table 6-2.

TXEN

10TXEN

Input

10M (Serial Interface) Transmit Enable.

This pin’s description is the same as that given in Table 9-6.

TXER

–

connect

Transmit Error.

For the 10M Serial Interface, these pins are a no connect. For

more information, see Table 6-2.

Table 9-8.

MAC/Repeater Interface Pins: 10M Serial Interface (Continued)

MII Pin

Name

10M

Serial

Name

No.

Type

Pin Description

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