XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 348

• Manufacturer Part Number: XRT94L33IB-L
• Description: IC MAPPER DS3/E3/STS-1 504TBGA
• Manufacturer: Exar Corporation

Specifications of XRT94L33IB-L

• Applications: Network Switches
• Interface: Bus
• Voltage - Supply: 3.14 V ~ 3.47 V
• Package / Case: 504-LBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

XRT94L33
Rev.1.2.0.
The user can implement this configuration by setting Bits 2 (Transmit AIS-P [down-stream] upon LOF) and 0
(AUTO AIS), within the “Receive STS-3 Transport – Auto AIS Control” Register, to “1” as depicted below.
Receive STS-3 Transport – Auto AIS Control Register (Address = 0x1163)
Of course, if the Receive STS-3 TOH Processor block transmits the AIS-P indicator towards the Receive
STS-3c POH Processor block, then all of the following will happen.
• The Receive STS-3c POH Processor block will declare the AIS-P defect condition.
• The corresponding Receive ATM Cell Processor block will declare the LCD (Loss of Cell Delineation)
defect condition.
2.3.1.4
Message
Transmit
Unstable
stream)
Section
(down-
AIS-P
Trace
B
upon
R/W
IT
0
7
XRT95L34 – Channel 0
THE AIS-L (LINE AIS) DEFECT DECLARATION AND CLEARANCE CRITERIA
STS-3/12
Interface
STS-3/12
Telecom
Interface
STS-3/12
Interface
STS-3/12
Telecom
Interface
STS-3/12
Mismatch
Message
Transmit
PECL
Block
Block
STS-3/12
stream)
Section
(down-
PECL
Block
Block
Block
Bus
AIS-P
Trace
CDR
B
upon
Block
R/W
Bus
CDR
IT
0
6
LOF
Transmit
upon SF
stream)
(down-
AIS-P
B
R/W
Processor
Transmit
STS-3/12
Processor
Processor
IT
Transmit
STS-3/12
STS-3/12
0
Processor
Receive
Block
STS-3/12
TOH
Microprocessor
Receive
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
Block
Block
5
TOH
TOH
Microprocessor
Block
TOH
Interface
Interface
Block
Block
AIS-P
Transmit
upon SD
stream)
(down-
AIS-P
B
R/W
IT
0
4
Processor
Processor
Transmit
STS-3/12
STS-3/12
Processor
Processor
Transmit
Receive
STS-3/12
STS-3/12
Receive
Block
Block
POH
POH
Block
Block
Synthesizer
POH
POH
348
Synthesizer
Clock
Block
Clock
Block
upon Loss
of Optical
Transmit
stream)
(down-
Carrier
AIS-P
B
R/W
IT
0
3
Cell Processor
Cell Processor
Cell Processor
Cell Processor
Processor
Processor
Transmit
Processor
Processor
Transmit
Transmit
Receive
Receive
Transmit
Block
Receive
Block
Receive
Block
ATM
PPP
PPP
Block
Block
Block
ATM
Block
ATM
PPP
PPP
Block
ATM
upon LOF
Transmit
stream)
(down-
AIS-P
B
R/W
IT
1
2
upon LOS
Transmit
stream)
(down-
AIS-P
B
R/W
POS-PHY
POS-PHY
UTOPIA/
Transmit
Transmit
UTOPIA
Interface
Interface
Interface
Interface
IT
POS-PHY
POS-PHY
0
UTOPIA/
Receive
Receive
Transmit
UTOPIA
Interface
Transmit
Interface
Interface
Interface
Receive
Receive
Block
Block
Block
Block
1
xr
Block
Block
Block
Block
AUTO AIS
B
R/W
IT
1
0