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About setup/hold time of synchronous display in i.MX6DQ.

Question asked by Keita Nagashima on Dec 16, 2015
Latest reply on Jan 25, 2016 by Artur Petukhov

Dear All,

 

Hello. We wasnt to calculate the setup/hold time of synchronous display in i.MX6DQ.

 

Refer to "Figure 71. Synchronous Display Interface Timing Diagram—Access Level" and "Table 70. Synchronous Display Interface Timing Characteristics (Access Level)" in IMX6DQAEC(Rev.4).

 

[Q1]

From Table 70;

Tdsu (min) = Tdicd - 1.24 , Tdsu (typ) = Tdicu

  Tdhd (min) = Tdicp-Tdicd-1.24 , Tdhd (typ) = Tdicp-Tdicu

But, the relation looks Tdsu (min) > Tdsu (typ).

I think that Tdsu (min) = Tdicu - 1.24, and also Tdhd (min) = Tdicp-Tdicu-1.24.

 

Is the value of Table.70 right?

 

[Q2]

Does "IPP_DATA" shift in the local start point?

 

[Q3]

Are "Display interface clock down time(Tdicd)" and "Display interface clock up time(Tdicu)" defined at the time from local start point in Figure 69?

 

Best Regards,

Keita

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