XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 424
XRT94L33IB-L
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
XRT94L33IB-L
Manufacturer:
Exar Corporation
Quantity:
10 000
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XRT94L33
Rev.1.2.0.
As a consequence, the user must read out a total of 14 “32-bit” words from the “Receive Cell Extraction”
buffer for each ATM cell that is read out of the Receive Cell Extraction Buffer.
Procedure for Reading a Cell from the “Receive Cell Extraction Buffer”
The user can read an ATM cell from the “Transmit Cell Extraction Buffer” within the Transmit ATM Cell
Processor block, by executing the following steps.
STEP 1 – Flush the contents of the “Receive Cell Extraction Buffer”
This is accomplished by executing a “Transmit Cell Extraction Buffer” RESET. The user can perform this
“Cell Extraction Buffer” RESET by doing the following.
STEP 1a – Write a “0” into Bit 4 (Extraction Memory RESET*) within the “Transmit ATM Cell – Memory
Control” Register; as depicted below.
Receive ATM Cell – Memory Control Register (Address = 0xN713)
STEP 1b – Write a “1” into Bit 4 (Extraction Memory RESET*), within the “Receive ATM Cell – Memory
Control” Register; as depicted below.
B
R/O
IT
0
7
Unused
B
R/O
IT
0
6
B
R/O
IT
0
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
5
Cell Payload Bytes (48 Bytes)
User Defined Field (3 Bytes)
Header Bytes (4 Bytes)
HEC Byte (1 Byte)
Extraction
RESET*
Memory
B
R/W
1->0
IT
4
424
Extraction
Memory
CLAV
B
R/W
IT
0
3
Insertion
RESET*
Memory
B
R/W
IT
1
2
Insertion
Memory
ROOM
B
R/W
IT
1
1
xr
Write SoC
Insertion
Memory
B
R/W
IT
0
0
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