Table Of Contents - Fujitsu MB86R02 Jade-D Application Note

Table of Contents

1 Document Revision History................................................................................................4
2 Spread-Spectrum Clocking Introduction ............................................................................5
3 Clock Tree Overview..........................................................................................................6
4 Clock Signals that can be modulated.................................................................................7
5 The SSCG unit in MB86R02 'Jade-D' ................................................................................8
5.1 Operating Frequency Ranges...................................................................................8
5.2 Modulation Parameters.............................................................................................8
5.2.1 Modulation Period .............................................................................................................. 8
5.2.2 Modulation Period Delta (Jitter) ......................................................................................... 9
5.2.3 Modulation Type ................................................................................................................ 9
5.2.4 Modulation Peak .............................................................................................................. 11
5.2.5 Modulation Shape ............................................................................................................ 12
5.3 Using Frequency Offset (SSCG_FOFFSET) ..........................................................13
6 Selecting the SSCG Operating Frequency ......................................................................13
7 How to configure the SSCG Unit .....................................................................................14
7.1 SSCG Unit Default Values......................................................................................14
7.2 Configuring the SSCG Registers ............................................................................14
7.3 Calculating SSCG_FSTEP .....................................................................................15
8 Enabling the SSCG Unit ..................................................................................................16
9 Checking the SSCG Unit is Operating .............................................................................16
10 Important Notes during operation ...............................................................................16
11 Disabling the SSCG Unit ............................................................................................17
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