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DS160PR410: Programming guide register explain.

zhuang rui
Prodigy 50 points
Part Number: DS160PR410


Tool/software:

Hi:

While I reading the ds160pr410 programming guide, there are some registers I can't it's corresponding detail explain and don't know it's meaning. Could you provide a detailed explain for registers mentioned below.

1.Here the CTLE termination is the input termination or output termination? Will it infect the output Vpp?

2. What does the TX VOD means? 

3. What does the 'Enable overrides for driver and equalizer enables' means?

4. What are 'Pre-driver' and 'Driver' meaning? What is the difference between them?

5. What does 'CM Loop' means?

  • 0
    TI__Mastermind 18800 points

    Hi Rui,

    zhuang rui said:
    2. What does the TX VOD means? 

    The VOD is one of the settings that influences the DC gain of the redriver (see Table 2 in the datasheet). It is already configured by the hardware strap pin so I don't recommend changing it at the register level.

    zhuang rui said:
    1.Here the CTLE termination is the input termination or output termination? Will it infect the output Vpp?
    zhuang rui said:
    3. What does the 'Enable overrides for driver and equalizer enables' means?
    zhuang rui said:
    4. What are 'Pre-driver' and 'Driver' meaning? What is the difference between them?
    zhuang rui said:
    5. What does 'CM Loop' means?

    All of these are low-level signal path settings used by TI for design and validation. I do not recommend that customers change them from their default values because they will likely decrease the performance of the redriver.

    Best,

    Evan Su