XRT94L33_07 Datasheet, PDF (632/862 Pages) Exar Corporation – 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER - ATM REGISTERS

XRT94L33
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Rev222...000...000
Table 555: Receive STS-1 Path – AUTO AIS Control Register (Address Location= 0xN1BB)
BIT 7
Unused
R/O
0
BIT 6
Transmit
AIS-P
(Down-
stream)
Upon C2
Byte
Unstable
R/W
0
BIT 5
Transmit
AIS-P
(Down-
stream)
Upon
UNEQ-P
R/W
0
BIT 4
Transmit
AIS-P
(Down-
stream)
Upon PLM-
P
R/W
0
BIT 3
Transmit
AIS-P
(Down-
stream)
Upon J1
Message
Unstable
R/W
0
BIT 2
Transmit
AIS-P
(Down-
stream)
upon
TIM-P
R/W
0
BIT 1
Transmit
AIS-P
(Down-
stream)
upon LOP-P
R/W
0
BIT 0
Transmit
AIS-P
(Down-
stream)
Enable
R/W
0
BIT NUMBER
7
6
5
4
NAME
Unused
Transmit AIS-P
(Downstream) upon C2
Byte Unstable
Transmit AIS-P
(Downstream) upon
UNEQ-P
Transmit AIS-P
(Downstream) upon
PLM-P
TYPE
R/O
DESCRIPTION
R/W Transmit Path AIS upon Detection of Unstable C2 Byte:
This READ/WRITE bit-field permits the user to configure the Receive
STS-1 POH Processor block to automatically transmit a Path AIS
(AIS-P) Indicator via the “downstream” traffic (e.g., towards the
Transmit SONET POH Processor blocks), anytime it detects an
Unstable C2 Byte condition in the “incoming” STS-1 data-stream.
0 – Does not configure the Receive STS-1 POH Processor block to
automatically transmit the AIS-P indicator (via the “downstream”
traffic) whenever it detects an “Unstable C2 Byte” condition.
1 – Configures the Receive STS-1 POH Processor block to
automatically transmit the AIS-P indicator (via the “downstream”
traffic) whenever it detects an “Unstable C2 Byte” condition.
Note:
The user must also set Bit 0 (Transmit AIS-P Enable) to “1”
to configure the Receive STS-1 POH Processor block to
automatically transmit the AIS-P indicator, in response to
this defect condition.
R/W Transmit Path AIS upon Detection of Path-Unequipped Defect
(UNEQ-P):
This READ/WRITE bit-field permits the user to configure the Receive
STS-1 POH Processor block to automatically transmit a Path AIS
(AIS-P) Indicator via the “downstream” traffic (e.g., towards the
Transmit SONET POH Processor blocks), anytime it declares an
UNEQ-P condition.
0 – Does not configure the Receive STS-1 POH Processor block to
transmit the AIS-P indicator (via the “downstream” traffic) upon
declaration of the UNEQ-P defect.
1 – Configures the Receive STS-1 POH Processor block to transmit
the AIS-P indicator (via the “downstream” traffic) upon declaration of
the UNEQ-P defect.
Note:
The user must also set Bit 0 (Transmit AIS-P Enable) to “1”
to configure the Receive STS-1 POH Processor block to
automatically transmit the AIS-P indicator, in response to
this defect condition.
R/W Transmit Path AIS upon Detection of Path-Payload Label
Mismatch Defect (PLM-P):
This READ/WRITE bit-field permits the user to configure the Receive
STS-1 POH Processor block to automatically transmit a Path AIS
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