Achronix Speedster22i SerDes Manual de usuario descargar pdf (Pagina 3)

The deskew module can work in three modes: .............................................................................................. 26

Standards Supported by Deskew Module ...................................................................................................... 27

Elastic FIFO (Elastic Buffer) ............................................................................................................. 27

EFIFO Standards and Skip Characters .......................................................................................................... 28

EFIFO Operation ............................................................................................................................................. 29

Overflow/Underflow ......................................................................................................................................... 31

8b/10b Decoder ............................................................................................................................... 31

Bit Slider .......................................................................................................................................... 31

Interface Encapsulation ................................................................................................................... 32

PCS Self Test Checker .................................................................................................................... 32

PCS Interface ................................................................................................... 33

Gigabit Ethernet Interface ................................................................................................................ 33

XAUI ................................................................................................................................................ 34

PIPE Interface .................................................................................................................................. 34

Clocking ........................................................................................................... 36

Debug and Test ............................................................................................... 38

Loopback Modes ............................................................................................................................. 38

PMA loopback modes: .................................................................................................................................... 39

PCS loopback modes: .................................................................................................................................... 39

PMA Test Pattern Generator ............................................................................................................ 40

PMA Test Pattern Checker .............................................................................................................. 40

PCS Test Pattern Generator ............................................................................................................ 40

PRBS Generator .............................................................................................................................. 40

PCS Test Pattern Checker ............................................................................................................... 41

Latency............................................................................................................. 42

PMA Latency ................................................................................................................................... 42

PCS Latency .................................................................................................................................... 42

Configurations Supported .............................................................................. 45

Design Flow: Creating a SerDes Design ........................................................ 49

Generating SerDes Wrapper using ACE GUI ................................................................................... 49

Single-Lane Serdes Wrapper ........................................................................................................... 50

Overview Section: ........................................................................................................................................... 53

Section on PMA Settings: ............................................................................................................................... 57

RX PMA Equalization ...................................................................................................................................... 59

RX PMA PLL ................................................................................................................................................... 60

TX PMA Driver ................................................................................................................................................ 62

TX PMA PLL ................................................................................................................................................... 62

Section on PCS Settings: ................................................................................................................................ 63

UG028, July 1, 2014

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Achronix Speedster22i SerDes Manual de usuario Pagina 3

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