CN8380 Datasheet, PDF (67/91 Pages) Conexant Systems, Inc – integrated quad line interface unit unit for both 1.544 Mbps (T1) and 2.048 Mbps (E1) applications

CN8380
Quad T1/E1 Line Interface
3.0 Registers
3.3 Per Channel Registers
LLOOP_PE
RLOOP_PE
LLOOP Pin Enable—Allows the use of the LLOOP hardware pin instead of the LLOOP
register bit to control loopbacks.
0 = Use LLOOP register bit
1 = Use LLOOP pin
RLOOP Pin Enable—Allows the use of the RLOOP hardware pin instead of the RLOOP
register bit to control loopbacks.
0 = Use RLOOP register bit
1 = Use RLOOP pin
15, 25, 35, 45—Alarm Status (ALARM)
7
6
5
4
3
2
1
RALOS
RLOS
TLOC
TLOS
TSHORT
JERR
BPV
R
0
—
RALOS
RLOS
TLOC
TLOS
TSHORT
JERR
BPV
Receive Analog Loss of Signal Detect—Indicates receiver analog loss of signal.
Receive Loss of Signal Detect—Indicates receiver loss of signal.
Transmit Loss of Clock Detect—Indicates loss of transmit clock, TCLK.
Transmit Loss of Signal Detect—Indicates a transmitter signal fault detected by the DPM.
Transmit Short Circuit Detect—Indicates transmitter output overload.
Jitter Attenuator Error Detect—Indicates jitter attenuator FIFO overflow or underrun.
Bipolar Violation Detect—Indicates a bipolar violation error. If ZCS encoding/decoding is
enabled, BPV is asserted only for bipolar violations which are not part of the ZCS code.
N8380DSA
Conexant
3-15
4/21/99
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