Achronix Speedster22i Clock and Reset Networks Uživatelský manuál stáhnout pdf (Strana 3)

UG027, May 21, 2014

Table of Contents

Table of Contents .............................................................................................. 3

Introduction ....................................................................................................... 4

Clock and Reset Networks Overview ..................................................................................... 4

Clock Resource Counts ................................................................................................................. 4

Reset Resource Counts ................................................................................................................. 5

Clock Sources ........................................................................................................................ 6

Reset Sources ....................................................................................................................... 6

Core Clock Network .......................................................................................... 7

Global and Direct Core Clock Network .................................................................................. 7

Global Core Clock Network ............................................................................................................ 7

Direct Core Clock Network ............................................................................................................. 8

Core Clock Network Components ........................................................................................ 10

Clock Generator (CG) .................................................................................................................. 10

Phase Locked Loop (PLL) ............................................................................................................ 11

Clock Mux .................................................................................................................................... 14

Clock Hub .................................................................................................................................... 15

Clock Region ................................................................................................................................ 16

Clock Region Management Unit (CRMU) ..................................................................................... 17

Junctions .............................................................................................................................. 19

Data-to-Clock Junctions ............................................................................................................... 19

Clock-to-Data Junctions ............................................................................................................... 19

Byte-Lane Clocks ................................................................................................................. 20

Boundary Clock Network ................................................................................ 21

Clock Setting and Reporting .......................................................................... 23

Reset Network ................................................................................................. 24

Reset Sources and the Reset Input Block ........................................................................... 24

Reset Distribution ................................................................................................................. 26

Revision History .............................................................................................. 28

1 2 3 4 5 6 7 8 ... 27 28

Žádné komentáře

Achronix Speedster22i Clock and Reset Networks Uživatelský manuál Strana 3