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Refer to figure 8 in the ADC Timing section of the "
max® 10 analog to digital converter user guide (
http://max® 10 analog to digital)".
What you've instantiated there is essentially what results having configured the IP from the catalogue into 'Configuration 4: ADC Control Core Only'. Refer to section 2.2.1 "Altera Modular ADC IP Core Configuration Variants", in the same document.
Cheers,
Alex
Edit
**Sorry - need to acknowledge that's exactly what you said you did...
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No exactly... what I have instantiated is a very small part of that - altera_modular_adc_control.v
Also included is a fifo, fsm, etc. I will take a look at those documents. Thanks.