DS90UB953-Q1: GPIOx latency

Nao

Genius 4905 points

Part Number: DS90UB953-Q1

Hi, E2E members

How long is the maximum latency delta of the GPIO data transmitted across links that DS90UB953 and DS90UB954?

* not set FC_GPIO_EN = 0x00

Regards,
Nao

over 5 years ago

0 Hamzeh Jaradat over 5 years ago

TI__Guru* 83800 points

Hello Nao,

The latency depends on the used clocking Mode:

Synchronous Mode -- 1.5 uS
Non-Synchronous Modes -- 3.2 uS
DVP Mode -- 12.2 uS

All these numbers are typical.

0 Nao over 5 years ago in reply to Hamzeh Jaradat

Genius 4905 points

Hi, Hamzeh

Thank you for your reply.

Regards,
Nao

0 Nao over 5 years ago in reply to Nao

Genius 4905 points

Hi, Hamzeh

I have additional questions for latency.

1. How long is the maximum latency T2?

2. Do you are guaranteed T1 = T3? If not, How long is the maximum latency T1 and T3?

Regards,

Nao

0 Hamzeh Jaradat over 5 years ago in reply to Nao

TI__Guru* 83800 points

Hello Nao,

One thing to mention is the latency numbers listed by me above are the Back Channel latencies. The forward channel latency (T2) is typically ~ 225 nS.
Yes, T1 is equal to T3

0 Nao over 5 years ago in reply to Hamzeh Jaradat

Genius 4905 points

Hello, Hamzen,

Thank you for your prompt reply and thank you for always helping me!!

Regards,
Nao

Interface

Interface forum

DS90UB953-Q1: GPIOx latency