XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 355

• 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

xr
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
•
Receive STS-3 Transport Interrupt Status Register – Byte 2 (Address = 0x1109)
2.3.1.5.2
The Receive STS-3 TOH Processor block will clear the RDI-L defect once it has received at least 5
consecutive STS-3 frames, in which bits 6, 7 and 8 (of the K2 byte) are set to some value other than [1, 1, 0].
Once the Receive STS-3 TOH Processor block clears the RDI-L defect, it will notify the system of this fact by
doing the following.
•
Receive STS-3 Transport Status Register – Byte 0 (Address = 0x1107)
•
Declared
Defect
RDI-L
B
B
R/O
It will generate the “Change in RDI-L Defect Condition” Interrupt, by toggling the “INT*” output pin “LOW”,
and by setting Bit 0 (Change of RDI-L Defect Condition Interrupt Status) within the “Receive STS-3
Transport Interrupt Status Register – Byte 2” to “ 1” as illustrated below.
R/O
It will set Bit 7 (RDI-L Defect Declared) within the Receive STS-3 Transport Status Register – Byte 0” to
“0” as illustrated below.
R/O
It will generate the “Change in RDI-L Defect Condition” Interrupt by toggling the “INT*” output pin “LOW”,
and by setting Bit 0 (Change of RDI-L Defect Condition Interrupt Status), within the “Receive STS-3
Transport Interrupt Status Register – Byte 2” to “1”, as illustrated below.
IT
IT
1
0
0
7
7
How the Receive STS-3 TOH Processor Block Clears the RDI-L Defect Condition
Declared
Unstable
Declared
S1 Byte
Defect
B
B
R/O
R/O
R/O
IT
IT
0
0
0
6
6
K1, K2 Byte
Declared
Declared
Unstable
Defect
B
B
R/O
R/O
R/O
IT
IT
0
0
0
5
5
Unused
SF Defect
Declared
B
B
R/O
R/O
R/O
IT
IT
0
0
0
4
4
355
SD Defect
Declared
B
B
R/O
R/O
R/O
IT
IT
0
0
0
3
3
LOF Defect
Declared
B
B
R/O
R/O
R/O
IT
IT
0
0
0
2
2
AIS-L Defect
SEF Defect
Change of
Condition
Declared
Interrupt
Status
B
RUR
B
R/O
R/O
IT
IT
0
0
0
1
1
XRT94L33
LOS Defect
Change of
Condition
Declared
Interrupt
Defect
Status
RDI-L
Rev.1.2.0.
B
B
RUR
R/O
R/O
IT
IT
0
1
0
0
0