LXT6155LE datasheet(24/50 Pages) INTEL

номер детали	LXT6155LE

подробное описание детали	155 Mbps SDH/SONET/ATM Transceiver

PDF	50 Pages

Scroll/Zoom	100%

производитель	INTEL [Intel Corporation]

домашняя страница	http://www.intel.com

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24 / 50 page

LXT6155 — 155 Mbps SDH/SONET/ATM Transceiver

Datasheet

Figure 11. Serial Interface

Figure 12. Parallel Interface

2.8

Loopback Modes

The LXT6155 provides two loopback modes that can be executed in either hardware or software

mode: local loopback and remote loopback. In remote loopback mode, the crystal reference clock

is used to center the receive PLL to prevent illegal clock looping.

2.8.1

Local Loopback

Local loopback routes the transmit line output signals (TTIP and TRING) back to the receive line

inputs (RTIP and RRING). In this mode, the line transmit output signals are active (see Figure 13).

Nevada

Overhead

Terminator/ATM UNI

DATA_OUT<0:1>

CLK_OUT<0:1>

TPOS, TNEG

TSICLKP,

TSICLKN

DATA_IN<0:1>

RPOS, RNEG

CLK_IN<0:1>

RSOCLKP,

RSOCLKN

LOS

CMIERR, LOS

SDI

SDO

SCLK

µProcessor (optional)

Data I/O

Chip Select

Clock

Nevada

Overhead

Terminator/ATM UNI

Chip Select

Data I/O

Clock

SDI

SDO

SCLK

µProcessor (optional)

DATA_IN<0:7>

BYTE_RCLK

RPOD<0:7>

RPOCLK

DATA_OUT<0:7>

BYTE_TCLK

TPID<0:7>

TPICLK

LOS, RIFP

LOS, ROFP/

CMIERR

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