STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
Register 003H: Receive Line Interface Configuration
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
AUTOYELLOW
AUTORED
AUTOOOF
AUTOAIS
RUNI
0
0
0
0
0
0
0
0
BPV
RDATINV
RFALL
AUTOYELLOW:
In T1 mode, when the AUTOYELLOW bit is set to logic 1, whenever the
alarm integrator declares a Red alarm in the receive direction, Yellow alarm
will be transmitted to the far end. When AUTOYELLOW is set to logic 0,
Yellow alarm will only be transmitted when the XYEL bit is set in the T1-XBAS
Alarm Transmit Register. Note that the Red alarm is not deasserted on
detection of AIS.
In E1 mode, when the AUTOYELLOW bit is set to logic 1, The RAI bit in the
transmit stream is set to a logic 1 for the duration of a loss of frame alignment
or AIS. The G706ANNBRAI bit of the Transmit Framing and Bypass Options
register optionally also allows for the transmission of RAI when CRC-to-non-
CRC interworking has been established. When AUTOYELLOW is set to
logic 0, RAI will only be transmitted when the RAI bit is set in the E1-TRAN
Transmit Alarm/Diagnostic Control register.
AUTORED:
The AUTORED bit allows global trunk conditioning to be applied to the
receive data and signaling streams, BRPCM and BRSIG, immediately upon
declaration of Red carrier failure alarm. When AUTORED is set to logic 1,
the data on BRPCM for each channel is replaced with the data contained in
the Data Trunk Conditioning registers within RPSC and the data on BRSIG
for each channel is replaced with the data contained in the Signaling Trunk
Conditioning registers within the RPSC while Red CFA is declared. When
AUTORED is set to logic 0, the receive data is not automatically conditioned
when Red CFA is declared.
PROPRIETARY AND CONFIDENTIAL
82
PMC [ PMC-SIERRA, INC ]
