PM73121 Datasheet, PDF (215/223 Pages) PMC-Sierra, Inc – AAL1 Segmentation And Reassembly Processor

Data Sheet
PMC-980620
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PMC-Sierra, Inc.
PM73121 AAL1gator II
AAL1 SAR Processor
APPENDIX A NOMENCLATURE
A.1 Definitions
Transmit Signals: all signals related to processing the data heading towards the optical/elec-
trical layer.
Receive Signals: all signals related to processing the data heading towards the ATM layer.
A.2 Signal Name Prefixes
All pins and alarm names in the AAL1gator II have prefixes indicating the functional layer
they implement (refer to Table 27).
Table 27. Prefixes and Associated Functional Layers
Pin Name Prefix
TATM
RATM
TPHY
RPHY
Associated Functional Layer
Transmit UTOPIA ATM Layer.
These signals should be connected to the PHY layer.
Receive UTOPIA ATM Layer.
These signals should be connected to the PHY layer.
Transmit UTOPIA ATM Layer.
These signals should be connected to the ATM layer.
Receive UTOPIA ATM Layer.
These signals should be connected to the ATM layer.
A.3 Numbers
Hexadecimal numbers are followed by the suffix “_h” and binary numbers are followed by the suf-
fix “_b”. For example: 101_b or 2C_h. Decimal numbers appear without a suffix.
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