Achronix Speedster22i sBus Instrukcja Użytkownika Pobierz pdf (Strona 4)

4 UG047, October 24, 2013

Read Operation ............................................................................................................................ 17

Write Operation ............................................................................................................................ 17

Single Master for Multiple Slaves Implementation ............................................................... 18

Master Specifications for Ethernet MAC and SerDes sBus Controller .......................................... 18

Master Actions for Ethernet MAC and SerDes sBus Controller .................................................... 18

Read Operation ............................................................................................................................ 18

Write Operation ............................................................................................................................ 18

Design Considerations ................................................................................................................. 18

Multiple Masters for a Single/Multiple Slave(s) Implementation ........................................... 19

Design Considerations ................................................................................................................. 19

Chapter 5 – sBus Design Examples ............................................................... 20

sBus Master Design ............................................................................................................. 20

Design Example ........................................................................................................................... 20

Master State Machine .................................................................................................................. 21

sBus Master Operation ........................................................................................................ 22

Clocking Considerations ...................................................................................................... 22

Appendix A – sBus Master Verilog Code....................................................... 23

Appendix B – Revision History ...................................................................... 27

1 2 3 4 5 6 7 8 9 ... 26 27

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Achronix Speedster22i sBus Instrukcja Użytkownika Strona 4