PXB 4219 E V3.4 Infineon Technologies, PXB 4219 E V3.4 Datasheet - Page 83
PXB 4219 E V3.4
Manufacturer Part Number
PXB 4219 E V3.4
Description
IC ATM/IP INTERWORKING BGA-256
Manufacturer
Infineon Technologies
Datasheet
1.PXB4220E-V33.pdf
(290 pages)
Specifications of PXB 4219 E V3.4
Applications
*
Mounting Type
Surface Mount
Package / Case
256-BGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
PXB4219EV3.4
SP000007681
SP000007681
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IWE8, V3.4
PXB 4219E, PXB 4220E, PXB 4221E
Operational Description
4.9
Cell Insertion
This block allows the insertion of predefined cells stored in the Cell Insertion Buffer into
the UTOPIA receive cell stream.
The Cell Insertion Buffer, located in external RAM, offers space for one ATM cell. The
ATM cell except of the UDF octet needs to be written to the Cell Insertion Buffer via the
Microprocessor interface. When transferring the cell to the UTOPIA receive interface an
UDF of 00
will be inserted.
H
Cell insertion is activated by setting the bit “insert_cell” in the Command Register (“cmd”,
see
Chapter
7.31) the cell is then read from the Cell Insertion Buffer and forwarded to
the UTOPIA Receive Interface.
The port number is generated randomly. Depending on the UTOPIA mode selection, it
will be mapped either on the UTOPIA address bus or in the ATM header
(“mapping_mode” = 2, 3, 4 or 5 in register “utconf”) overwriting the predefined values.
Data Sheet
83
2003-01-20
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