xrt94l33 Exar Corporation, xrt94l33 Datasheet - Page 413
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xrt94l33
Manufacturer Part Number
xrt94l33
Description
Multi-channel, Multi-function Device Aggregates 3 Ds3/e3/sts-1 Into Oc3/stm-1
Manufacturer
Exar Corporation
Datasheet
1.XRT94L33.pdf
(465 pages)
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xrt94l33IB
Manufacturer:
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Quantity:
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3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
Receive ATM Cell Processor Block – Receive ATM Cells with Uncorrectable HEC Byte Error Count
Register – Byte 1 (Address = 0xN736)
Receive ATM Cell Processor Block – Receive ATM Cells with Uncorrectable HEC Byte Error Count
Register – Byte 0 (Address = 0xN737)
3. It will NOT correct the “Single-Bit” Error within this particular ATM cell. In fact, unless the Receive ATM
Cell Processor block is configured otherwise, it will discard this particular ATM cell.
Note:
Receive ATM Cell Processor Block – Receive Discarded ATM Cell Count – Byte 3 (Address = 0xN72C)
Receive ATM Cell Processor Block – Receive Discarded ATM Cell Count – Byte 2 (Address = 0xN72D)
Receive ATM Cell Processor Block – Receive Discarded ATM Cell Count – Byte 1 (Address = 0xN72E)
Receive ATM Cell Processor Block – Receive Discarded ATM Cell Count – Byte 0 (Address = 0xN72F)
B
B
B
B
B
B
RUR
RUR
RUR
RUR
RUR
IT
IT
IT
IT
IT
IT
0
0
0
0
0
7
7
7
7
7
7
Whenever the Receive ATM Cell Processor block discards ATM cells for “Uncorrectable HEC Byte” errors it will
also increment the “Receive ATM Cell Processor Block – Receive Discarded ATM Cell Count” Registers. These
registers are also 32-bit RESET-upon-READ registers that reside at Address Locations 0xN72C through
0xN72F. The bit format of these registers is presented below.
B
RUR
B
RUR
B
RUR
B
RUR
B
RUR
B
IT
IT
IT
IT
IT
IT
0
0
0
0
0
6
6
6
6
6
6
Received Cells with Uncorrectable HEC Byte Error Count[15:8]
Received Cells with Uncorrectable HEC Byte Error Count[7:0]
B
RUR
B
RUR
B
RUR
B
RUR
B
RUR
B
IT
IT
IT
IT
IT
IT
0
0
0
0
0
5
5
5
Receive – Discarded ATM Cell Count[31:24]
5
Receive – Discarded ATM Cell Count[23:16]
5
5
Receive – Discarded ATM Cell Count[15:8]
Receive – Discarded ATM Cell Count[7:0]
B
RUR
B
RUR
B
RUR
B
RUR
B
RUR
B
IT
IT
IT
IT
IT
IT
0
0
0
0
0
4
4
4
4
4
4
413
B
RUR
B
RUR
B
RUR
B
RUR
B
RUR
B
IT
IT
IT
IT
IT
IT
0
0
0
0
0
3
3
3
3
3
3
B
RUR
B
RUR
B
RUR
B
RUR
B
RUR
B
IT
IT
IT
IT
IT
IT
0
0
0
0
0
2
2
2
2
2
2
B
RUR
B
RUR
B
RUR
B
RUR
B
RUR
B
IT
IT
IT
IT
IT
IT
0
0
0
0
0
1
1
1
1
1
1
XRT94L33
Rev.1.2.0.
B
RUR
B
RUR
B
RUR
B
RUR
B
RUR
B
IT
IT
IT
IT
IT
IT
0
0
0
0
0
0
0
0
0
0
0
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