PXB4220EV3.4X Infineon Technologies, PXB4220EV3.4X Datasheet - Page 41
PXB4220EV3.4X
Manufacturer Part Number
PXB4220EV3.4X
Description
Manufacturer
Infineon Technologies
Datasheet
1.PXB4220EV3.4X.pdf
(290 pages)
Specifications of PXB4220EV3.4X
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
Compliant
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Table 11
Block
CV
RB
CK
JT
ICRC
External
RAM
Data Sheet
Functions
External Clock Recovery interface
• Generation of serial communication frames to external clock recovery
• Generation of synchronization for RTS generation by external clock
• Reception of frames with RTS values from external clock recovery circuit
RTS Buffer
• Buffer for 2 incoming RTS values per port
Clock & Reset
• Clock distribution
• Reset control
JTAG interface
• Boundary Scan register
• TAP controller
Internal Clock Recovery Circuit
• Synchronous Residual Time Stamp SRTS
• Adaptive Clock Method ACM
ATM Transmit Buffer
• Compensate packetization delay on the PDH interface.
• Maximum size of 256 ATM cells per port.
• Maximum size of 64 octets per ATM cell.
ATM Receive Buffer
• Maximum size of 16 ATM cells per port.
• Maximum size of 64 octets per ATM cell.
Segmentation Buffer
• Compensate segmentation delay in the ATM network.
• 1024 bytes per port (unstructured CES)
• 256 bytes per timeslot (structured CES)
Reassembly Buffer
• Compensate the Cell Delay Variation (CDV) of the ATM network.
• 512 bytes per timeslot. (structured CES)
Functions of IWE8 Blocks (cont’d)
circuit, containing RTS values and or ACM buffer filling
recovery circuit.
41
PXB 4219E, PXB 4220E, PXB 4221E
Functional Description
IWE8, V3.4
2003-01-20
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