XRT86VX38 Datasheet, PDF (36/185 Pages) Exar Corporation – 8-CHANNEL T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION

XRT86VX38
8-CHANNEL T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION
REV. 1.0.1
TABLE 14: RECEIVE NATIONAL BITS REGISTER (RNBR)
HEX ADDRESS: 0XN111
BIT
FUNCTION
TYPE DEFAULT
DESCRIPTION-OPERATION
7 Si_FAS
RO
x
Received International Bit - FAS Frame
This Read Only bit contains the value of the International Bit (e.g.,
the Si bit) in the most recently received FAS frame.
6 Si_nonFAS
RO
x
Received International Bit - Non FAS Frame
This Read Only bit contains the value of the International Bit (e.g.,
the Si bit) in the most recently received non-FAS frame
5 R_ALARM
RO
x
Received A bit - Non FAS Frame
This Read Only bit contains the value in the Remote Alarm Indication
bit (A bit, or bit 3 of non-FAS frame) within the most recently received
non-FAS frame.
4 Sa4
3 Sa5
2 Sa6
RO
x
Received National Bits
RO
x
These Read Only bits contain the values of the National bits (Sa4-
Sa8) within the most recently received non-FAS frame.
RO
x
1 Sa7
RO
x
0 Sa8
RO
x
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