XRT86VX38_09 Datasheet, PDF (42/200 Pages) Exar Corporation – 8-CHANNEL T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION

XRT86VX38
8-CHANNEL T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
REV. 1.0.1
TABLE 24: LAPD SELECT REGISTER (LAPDSR)
HEX ADDRESS: 0XN11B
BIT
FUNCTION
TYPE DEFAULT
DESCRIPTION-OPERATION
[7:5] Reserved
-
-
Reserved
4 HDLC3en
R/W
1
HDLC Controller 3 Enable
This bit is used to enable or disable HDLC Controller 3. By default,
the HDLC controller is Enabled, this bit set to "1". If the HDLC con-
troller is disabled while transmitting a message, BOS will disrupt the
transmission and send all ones, MOS will send the flag sequence.
0 - Disabled
1 - Enabled
3 HDLC2en
R/W
1
HDLC Controller 2 Enable
This bit is used to enable or disable HDLC Controller 2. By default,
the HDLC controller is Enabled, this bit set to "1". If the HDLC con-
troller is disabled while transmitting a message, BOS will disrupt the
transmission and send all ones, MOS will send the flag sequence.
0 - Disabled
1 - Enabled
2 HDLC1en
R/W
1
HDLC Controller 1 Enable
This bit is used to enable or disable HDLC Controller 1. By default,
the HDLC controller is Enabled, this bit set to "1". If the HDLC con-
troller is disabled while transmitting a message, BOS will disrupt the
transmission and send all ones, MOS will send the flag sequence.
0 - Disabled
1 - Enabled
[1:0] HDLC Controller
Select[1:0]
R/W
0
HDLC Controller Select[1:0]:
These bits permit the user to select any of the three (3) HDLC Con-
trollers that he/she will use within this particular channel, as
depicted below.
00 & 11 - Selects HDLC Controller # 1
01 - Selects HDLC Controller # 2
10 - Selects HDLC Controller # 3
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