IDT77155L155PX 데이터 시트보기 (PDF) - Integrated Device Technology

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IDT77155L155PX

PHY (TC-PMD) USER NETWORK INTERFACE FOR 155 MBPS ATM NETWORK APPLICATIONS

Integrated Device Technology 

Integrated Device Technology, Inc.

PHY (TC-PMD) USER NETWORK

INTERFACE FOR 155 MBPS ATM

NETWORK APPLICATIONS

ADVANCED

INFORMATION

IDT77155

KEY FEATURES

• One chip ATM User Network Interface for 155.52 Mbps/

51.84Mbps operating speed.

• Full implementation of the SONET/SDH criteria according

to Bellcore GR-253-CORE and ITU-T G.709, G.783.

• Full implementation of the ATM physical layer according

to CCITT I.432 and ATM Forum User Network Interface

Specification.

• Full-duplex 155.52 Mbps STS-3c/STM-1 or 51.84 Mbps

STS-1 data with built-in clock/data recovery and clock

synthesis.

• Supports 4-cell PHY FIFO buffers for both transmit and

receive directions with parity.

• Provides GFC bits insertion and extraction.

• UTOPIA Level 1 and Level 2 Interface.

• Supports up to 4 PHYs for Multi-PHY connections with 2-

bit address and 8-bit data using UTOPIA 2 protocol.

• Provides an 8-bit microprocessor bus interface for

configuration, control and monitoring.

• Low power CMOS

• 128 pin PQFP Package (14 mm x 20 mm).

DESCRIPTION

The IDT77155 is a member of IDT's SWITCHStAR™ family

of products for Asynchronous Transfer Mode (ATM) net-

works.

The IDT77155 is a integrated circuit that provides the

SONET/SDH processing and ATM mapping functions of a

155 Mbps/51 Mbps ATM User Network Interface. Provides full

compliance with SONET/SDH requirements and ATM Forum

SYSTEM-LEVEL FUNCTIONAL BLOCK DIAGRAM

TFCLK

TXPRTY

TDAT[7:0]

TSOC

TCA

TxADDR[1:0]

MPHYEN

RxADDR[1:0]

TSEN

RFCLK

RXPRTY

RDAT[7:0]

RSOC

RCA

TUrTACFTFaCrIOTIenFaFeMlsPnlOOlmlsIAmit it

Transmit

SONET

Framer

Receive

UTOPIA

Cell

FIFO

Receive

SONET

Framer

Micoprocessor

Interface

NICStAR is a trademark and the IDT logo is a registered trademark of Integrated Device Technology, Inc.

COMMERCIAL TEMPERATURE RANGE

©1996 Integrated Device Technology, Inc.

8.03

Clk Gen.

Parallel

to

Serial

EEnnccooddeerr

Serial

to

Parallel

Decoder

CClklkRRece.c.

TRCLK-

TRCLK+

TXC-

TXC+

TXD+

TXD-

RXDO-

RXD-

RXD+

RXDO+

RRCLK-

RRCLK+

ALOS-

ALOS+

3497 drw 01

NOVEMBER 1996

DSC-2066/5

1

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