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Chapter 5
COMX-P4080-2G-ENP2 Installation and Use (6806800P63B)
55
Clock Structure
The COMX-P4080-2G-ENP2 needs several kinds of single ended and differential clocks for
booting up and normal operating. Following is the clock distribution tree:
For ruggedized variant where dip switches are not mounted, the following signals connects to
COM Express connector and will be up to carrier to configure them:
Figure 5-1
Clock Distribution
SERDES bank 1 reference
clock select (pin B97 on
COME)
SERDES bank 2 reference
clock select (pin B98 on
COME)
SERDES bank 2 reference
clock select (pin B98 on
COME)
Bank1_SEL_FS0=0,
100MHz
Bank2_SEL_S1=0,
100MHz
Bank2_SEL_S1=0,
100MHz
Bank1_SEL_FS0=1,
125MHz
Bank2_SEL_S1=1,
125MHz
Bank2_SEL_S1=1,
125MHz
*Default:100MHz
*Default:125MHz
*Default:125MHz
Summary of Contents for COMX-P4080-2G-ENP2
Page 1: ...COMX P4080 2G ENP2 Installation and Use P N 6806800P63B August 2014 ...
Page 6: ...COMX P4080 2G ENP2 Installation and Use 6806800P63B Contents 6 Contents Contents ...
Page 8: ...COMX P4080 2G ENP2 Installation and Use 6806800P63B 8 List of Tables ...
Page 10: ...COMX P4080 2G ENP2 Installation and Use 6806800P63B 10 List of Figures ...
Page 18: ...COMX P4080 2G ENP2 Installation and Use 6806800P63B Safety Notes 18 ...
Page 30: ...Hardware Preparation and Installation COMX P4080 2G ENP2 Installation and Use 6806800P63B 30 ...
Page 68: ...BSP COMX P4080 2G ENP2 Installation and Use 6806800P63B 68 ...
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