XRT83SL38IB View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

XRT83SL38IB

OCTAL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER

Exar Corporation 

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XRT83SL38

OCTAL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

REV. P1.1.0

PRELIMINARY

LOOP-BACK MODES

The XRT83SL38 supports several Loop-Back modes under both Hardware and Host control. In Hardware

mode the two LOOP[1:0] pins control the Loop-Back functions for each channel independently according to

Table 14.

TABLE 14: LOOP-BACK CONTROL IN HARDWARE MODE

LOOP1

LOOP0

LOOP-BACK MODE

0

0

None

0

1

Analog

1

0

Remote

1

1

Digital

In Host mode the Loop-Back functions are controlled by the three LOOP[2:0] interface bits. Each channel can

be programmed independently according to Table 15.

TABLE 15: LOOP-BACK CONTROL IN HOST MODE

LOOP2 LOOP1 LOOP0 LOOP-BACK MODE

0

X

X

None

1

0

0

Dual

1

0

1

Analog

1

1

0

Remote

1

1

1

Digital

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