SW52212 datasheet(4/71 Pages) SILABS

4 / 71 page

Table of Contents

1. Feature List ................................ 2

2. Ordering Guide

.............................. 3

2.1 Technical Support ............................. 3

3. Functional Block Diagrams .......................... 6

4. Electrical Specifications ........................... 8

5. Functional Description ........................... 20

5.1 Crystal Recommendations ..........................20

5.2 Crystal Loading ..............................20

5.3 Calculating Load Capacitors .........................21

5.4 Power Supply Filtering Recommendations.....................22

5.5 PWRGD/PWRDNb (Power Down) Pin ......................22

5.6 PWRDNb (Power Down) Assertion .......................23

5.7 PWRDNb (Power Down) Deassertion ......................23

5.8 OEb Pin ................................23

5.9 OEb Assertion ..............................23

5.10 OEb Deassertion .............................24

5.11 FS Pin ................................24

5.12 SS_EN Pin ...............................24

5.13 Recommendations for Driving Tri-State Pins

...................24

5.14 REF/SA Pin

..............................25

6. Test and Measurement Setup

........................ 26

7. PCIe Clock Jitter Tool

........................... 28

8. Control Registers ............................. 29

8.1 I2C Interface ...............................29

8.2 Block Read/Write .............................29

8.3 Block Read ...............................29

8.4 Block Write ...............................30

8.5 Byte Read/Write .............................30

8.6 Byte Read ...............................30

8.7 Byte Write

...............................31

8.8 Data Protocol ..............................32

8.9 Register Tables..............................34

8.9.1 Si52212 Registers ...........................34

8.9.2 Si52208 Registers ...........................37

8.9.3 Si52204 Registers ...........................40

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