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USB Superspeed Peripherals

Anonymous
Not applicable

Hi,

   

what is the drive strength in numbers???

   

 

   

typedef enum CyU3PDriveStrengthState_t
{
    CY_U3P_DS_QUARTER_STRENGTH = 0,     /* The drive strength is one-fourth the maximum */
    CY_U3P_DS_HALF_STRENGTH,            /* The drive strength is half the maximum */
    CY_U3P_DS_THREE_QUARTER_STRENGTH,   /* The drive strength is three-fourth the maximum */
    CY_U3P_DS_FULL_STRENGTH             /* The drive strength is the maximum */

} CyU3PDriveStrengthState_t;
 

   

How much mA or µA can a GPIO pin drive when it is configured to 1/4; 1/2; 3/4; 1 ???

   

thanks,

   

lumpi

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6 Replies
Anonymous
Not applicable

Hi Lumpi,

   

We are in the process of evaluating the current numbers under different drive strengths.

   

I will update you soon on this.

   

Thanks,

   

sai krishna.

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Anonymous
Not applicable

Hi,

   

thanks, I am curious to know...

   

lumpi

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Anonymous
Not applicable

Ping.

I am interested in this also.

   

Steve 

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Anonymous
Not applicable

Hi,

   

I am interesting to get this information also. I'd like to connect optocoupler to GPIO but I have to know current strength ability to drive it.

   

Please help

   

Thank you

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Anonymous
Not applicable

Hi Guys,

   

I will update you today.

   

Thanks,

   

sai krishna.

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Anonymous
Not applicable

Hi All,

   

I am attaching xls containing IOH and IOL values under different drive strengths. Please let me know if you have any difficulties in understanding it.

   

Thanks,

   

sai krishna.

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