XRT86VL34 datasheet(59/156 Pages) EXAR

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XRT86VL34

REV. V1.2.0

QUAD T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION

TABLE 36: LOOPBACK CODE CONTROL REGISTER (LCCR)

HEX ADDRESS: 0XN124

BIT

FUNCTION

TYPE

DEFAULT

DESCRIPTION-OPERATION

7-6

RXLBCALEN[1:0]

R/W

Receive Loopback Code Activation Length

This bit determines the receive loopback code activation length.

There are four lengths supported by the XRT86VL34 as presented

in the table below:

5-4

RXLBCDLEN[1:0]

R/W

Receive Loopback Code Deactivation Length

This bit determines the receive loopback code deactivation length.

There are four lengths supported by the XRT86VL34 as presented

in the table below

RXLBCALEN[1:0]

RECEIVE LOOPBACK CODE ACTIVATION

LENGTH

Selects 4-bit receive loopback code activa-

tion Sequence

Selects 5-bit receive loopback code activa-

tion Sequence

Selects 6-bit receive loopback code activa-

tion Sequence

Selects 7-bit receive loopback code activa-

tion Sequence

RXLBCDLEN[1:0]

RECEIVE LOOPBACK CODE DEACTIVATION

LENGTH

Selects 4-bit receive loopback code deacti-

vation Sequence

Selects 5-bit receive loopback code deacti-

vation Sequence

Selects 6-bit receive loopback code deacti-

vation Sequence

Selects 7-bit receive loopback code deacti-

vation Sequence

XRT86VL34 Datasheet(PDF) 59 Page - Exar Corporation

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