PXB4219EV34NP Infineon Technologies, PXB4219EV34NP Datasheet - Page 84
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PXB4219EV34NP
Manufacturer Part Number
PXB4219EV34NP
Description
Manufacturer
Infineon Technologies
Datasheet
1.PXB4219EV34NP.pdf
(290 pages)
Specifications of PXB4219EV34NP
Data Rate
2.048Mbps
Number Of Channels
1
Operating Supply Voltage (typ)
3.3V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Not Compliant
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4.10
Cells coming in downstream direction from the UTOPIA Transmit Interface can be
extracted to the Cell Extraction Buffer instead of the Reassembly/ATM Transmit Buffer.
The Cell Extraction Buffer offers space for 254 ATM cells. It is located in the external
RAM.
Incoming cells are written to the Extraction Buffer if
• their VCI matches to a pattern predefined in the Cell Filter VCI Pattern 1 Register
• or their VCI matches to a pattern predefined in the Cell Filter VCI Pattern 2 Register
• or their PTI matches to one of two pattern defined in the Cell Filter Payload Type
Once a cell has been extracted to the cell Extraction Buffer, it is indicated by the bit
“cf_fifo_n_empty” in the Extended Interrupt Status Register (“eis1”, see
Cells can be read with the help of the read pointer (“rdptr”) in the Cell Filter Read Pointer
Register (“cfrp”,
value is a pointer to the current base-address, at which the microprocessor can read the
next extracted cell from the Extraction Buffer.
MPADR = 26000
RMADR = 03000
After reading the cell the rdptr has to be incremented by the microprocessor and written
back. If the rdptr is incremented to its maximum value FF
written back instead.
Data Sheet
(cfvp1, see
VCI Mask Register 1 (cfvm1,
(cfvp2, see
VCI Mask Register 1 (cfvm1,
Register (“cfpt”, see
“cfpt”.
Cell Extraction
Chapter
Chapter
Chapter
H
H
+ 20
+ 10
7.26) where each bit of the VCI can be masked via the Cell Filter
7.28) where each bit of the VCI can be masked via the Cell Filter
H
Chapter
H
· rdptr
· rdptr
7.32). The rdptr can have values between 02
Chapter
Chapter
7.30) each of these patterns can also be masked via
7.27)
7.29)
84
PXB 4219E, PXB 4220E, PXB 4221E
H
Operational Description
the value 02
H
Chapter
and FF
IWE8, V3.4
H
2003-01-20
has to be
H
7.19).
. This
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