Hi All,
When I go through in Hardware design check list I could see following. (NXP PCIE recommendation) / (Look NXP PCIE recommendation pic)
But when we refer open Rex we can't see those changes. It should be both 470 Ohms and 56 Ohms pull up and pull down resistors for PCIE REFCLK. (open Rex PCIE)
1) Could you please explain why open Rex is not using those changes ?
2) Why we use both pull up and pull down as described in NXP doc ?
Regards,
Kulunu.
When I go through in Hardware design check list I could see following. (NXP PCIE recommendation) / (Look NXP PCIE recommendation pic)
But when we refer open Rex we can't see those changes. It should be both 470 Ohms and 56 Ohms pull up and pull down resistors for PCIE REFCLK. (open Rex PCIE)
1) Could you please explain why open Rex is not using those changes ?
2) Why we use both pull up and pull down as described in NXP doc ?
Regards,
Kulunu.
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