XRT86VL38_2 Datasheet, PDF (62/160 Pages) Exar Corporation – OCTAL T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION

XRT86VL38
OCTAL T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
REV. V1.2.0
TABLE 38: LOOPBACK CODE CONTROL REGISTER (LCCR)
HEX ADDRESS: 0XN124
BIT
FUNCTION
TYPE DEFAULT
DESCRIPTION-OPERATION
7-6 RXLBCALEN[1:0]
R/W
00 Receive Loopback Code Activation Length
This bit determines the receive loopback code activation length.
There are four lengths supported by the XRT86VL38 as presented
in the table below:
RXLBCALEN[1:0]
RECEIVE LOOPBACK CODE ACTIVATION
LENGTH
00
Selects 4-bit receive loopback code activa-
tion Sequence
01
Selects 5-bit receive loopback code activa-
tion Sequence
10
Selects 6-bit receive loopback code activa-
tion Sequence
11
Selects 7-bit receive loopback code activa-
tion Sequence
5-4 RXLBCDLEN[1:0]
R/W
00 Receive Loopback Code Deactivation Length
This bit determines the receive loopback code deactivation length.
There are four lengths supported by the XRT86VL38 as presented
in the table below
RXLBCDLEN[1:0]
RECEIVE LOOPBACK CODE DEACTIVATION
LENGTH
00
Selects 4-bit receive loopback code deacti-
vation Sequence
01
Selects 5-bit receive loopback code deacti-
vation Sequence
10
Selects 6-bit receive loopback code deacti-
vation Sequence
11
Selects 7-bit receive loopback code deacti-
vation Sequence
57