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Altera_Forum
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15 years ago

RX'ing different data rates with ALTGX using reverse serial loopback

I am trying to instantiate 16 ALTGX transceivers in a Stratix IV GX (1517-pin) package. I want all of the channels to operate in reverse serial loopback mode - I am never transmitting data from u...
Altera_Forum's avatar
Altera_Forum
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15 years ago

Can the CDR lock to data if even if the data rate selected/set on the General page of the MegaWizard doesn't match the rate of received data?

In the MegaWizard is it possible to set the data rate to frequency A, and then successfully receive data at other frequencies A, B, C, and D?

If I set A to 8.5 Gbps, can I receive (and lock to) data rates of 1.0625, 2.125, 4.25 and 8.5 Gbps? Or do I need to dynamically reconfigure the transceiver to the different data rates?