XRT86L30_08 Datasheet, PDF (65/284 Pages) Exar Corporation – SINGLE T1/E1/J1 FRAMER/LIU COMBO

REV. 1.0.1
REGISTER 17
BIT
FUNCTION
4 Sa4
3 Sa5
2 Sa6
1 Sa7
0 Sa8
SINGLE T1/E1/J1 FRAMER/LIU COMBO
TABLE 30: RECEIVE NATIONAL BITS REGISTER
RECEIVE NATIONAL BITS REGISTER (RNBR)
XRT86L30
HEX ADDRESS: 0X0111
TYPE DEFAULT
DESCRIPTION-OPERATION
RO
x
Received National Bits
RO
x
These Read Only bit-fields contain the values of the National bits
within the most recently received non-FAS frame.
RO
x
RO
x
RO
x
REGISTER 18
BIT
FUNCTION
7 IF Detection
6-4 Reserved
3 EX1
2 ALARMFE
1 EX2
0 EX3
TYPE
RO
-
RO
RO
RO
RO
TABLE 31: RECEIVE EXTRA BITS REGISTER
RECEIVE EXTRA BITS REGISTER (REBR)
HEX ADDRESS: 0X0112
DEFAULT
DESCRIPTION-OPERATION
0
In Frame Detection (DS1/E1)
This register bit is used to indicate whether the receive framer is In Frame
or out of Frame.
0 = Out of Frame
1 = In Frame
-
Reserved
x
Extra Bit 1
Corresponds to value in bit 5 within timeslot 16 of frame 0 of the signaling
multiframe
x
CAS Multi-Frame Yellow Alarm
Corresponds to value in bit 6(CAS Multiframe Yellow Alarm) within
timeslot 16 of frame 0 of the signaling multiframe.
0 = Remote E1 transmitting terminal is not sending CAS Multiframe Yel-
low Alarm
1 = Remote E1 transmitting terminal is sending CAS Multiframe Yellow
Alarm
x
Extra Bit 2
Corresponds to value in Bit 7 within timeslot 16 of frame 0 of the signaling
multiframe
x
Extra Bit 3
Corresponds to value in Bit 8 within timeslot 16 of frame 0 of the signaling
multiframe
NOTE: The value of bits [3:0] within this register only have meaning if the framer is using Channel Associated Signaling.
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