
PRELIMINARY
XRT86SH328
209
REV. P1.0.6
28-CHANNEL DS1/E1 FRAMER/LIU WITH DS3 MUX & VT-MAPPER - SONET APPLICATIONS
1.
2.
1, 0, 1, 0, …. Pattern, or an Unframed All Ones pattern, depending upon the state of BIT7 (Transmit AIS -
Unframed All Ones), within the Transmit DS3 Pattern Register (Address = 0x0E4C).
BIT 3 - Transmit LOS Indicator
This READ/WRITE bit-field is used to force the Transmit DS3 Framer block to transmit the LOS pattern to the remote
terminal equipment, as described below.
`
0 - Configures the Transmit DS3 Framer block to transmit normal traffic to the remote terminal equipment.
`
1 - Configures the Transmit DS3 Framer block to transmit the LOS pattern (e.g., either an All Zeros or All Ones
pattern, depending upon user configuration).
N
OTE
:
Whenever this bit-field is set to 1, it will transmit either an All Zero pattern or an Unframed All Ones pattern,
depending upon the state of BIT 4 (Transmit LOS Pattern - All Ones Pattern) within the Transmit DS3 Pattern
Register (Address = 0x0E4C).
BIT 2 - Transmit FERF/RDI upon LOS
This READ/WRITE bit-field is used to configure the Transmit DS3 Framer block to automatically transmit the FERF/RDI
indicator, anytime (and for the duration that) the Receive DS3 Framer block declares the LOS defect condition.
`
0 - Configures the Transmit DS3 Framer block to NOT automatically transmit the FERF/RDI indicator, whenever (and
for the duration that) the Receive DS3 Framer block declares the LOS defect condition.
`
1 - Configures the Transmit DS3 Framer block to automatically transmit the FERF/RDI indicator, whenever (and for
the duration that) the Receive DS3 Framer block declares the LOS defect condition.
BIT 1 - Transmit FERF/RDI upon LOF/OOF:
This READ/WRITE bit-field is used to configure the Transmit DS3 Framer block to automatically transmit the FERF/RDI
indicator, anytime (and for the duration that) the Receive DS3 Framer block declares the OOF defect condition, as
described below.
`
0 - Configures the Transmit DS3 Framer block to NOT automatically transmit the FERF/RDI indicator, whenever (and
for the duration that) the Receive DS3 Framer block declares the OOF defect condition.
`
1 - Configures the Transmit DS3 Framer block to automatically transmit the FERF/RDI indicator whenever (and for
the duration that) the Receive DS3 Framer block declares the OOF defect condition.
BIT 0 - Transmit FERF/RDI upon AIS
This READ/WRITE bit-field is used to configure the Transmit DS3 Framer block to automatically transmit the FERF/RDI
indicator, anytime (and for the duration that) the Receive DS3 Framer block declares the AIS defect condition, as
described below.
`
0 - Configures the Transmit DS3 Framer block to NOT automatically transmit the FERF/RDI indicator, whenever (and
for the duration that) the Receive DS3 Framer block declares the AIS defect condition.
`
1 - Configures the Transmit DS3 Framer block to automatically transmit the FERF/RDI indicator, whenever (and for
the duration that) the Receive DS3 Framer block declares the AIS defect condition.
This bit-field is ignored if BIT 3 (Transmit LOS Indicator) is set to 1.
Whenever this bit-field is set to 1, the Transmit DS3 Framer block will either transmit a Framed repeating
BIT [7:5] - Unused:
Please set these bits to [0, 0, 0] for normal operation.
BIT 4 - Transmit FEAC Interrupt Enable:
T
ABLE
280: DS3 F
RAMER
B
LOCK
- T
RANSMIT
DS3 FEAC C
ONFIGURATION
& S
TATUS
R
EGISTER
(A
DDRESS
=
0
X
0E31)
B
IT
7
B
IT
6
B
IT
5
B
IT
4
B
IT
3
B
IT
2
B
IT
1
B
IT
0
Unused
Transmit
FEAC
Interrupt
Enable
Transmit
FEAC
Interrupt
Status
Transmit
FEAC
Controller
Enable
Transmit
FEAC
Message
Transmit
FEAC
Busy
R/O
R/O
R/O
R/W
RUR
R/W
R/W
R/O
0
0
0
0
0
0
0
0