TMS320C6655: SRIO reference clocks option

Ohad Fundoianu

Intellectual 380 points

Part Number: TMS320C6655

Hello,

We are using the SRIO interface in the board we are now designing.

I saw that table of reference clocks on the SRIO doc :

Beside those reference clocks written in the table are there more options for reference clock of the HS interface ?

Thanks,

Ohad

over 3 years ago

0 Rajarajan Uthayakumar over 3 years ago

TI__Expert 4314 points

Hi Ohad,

Other clock signals available (C665x DSP processor) are

This table is derived from C665x datasheet on Page 14, kindly refer the datasheet for further reference.

Thanks,

Rajarajan U

0 Ohad Fundoianu over 3 years ago in reply to Rajarajan Uthayakumar

Intellectual 380 points

I guess you didn't understand the question. I asked only on the SRIO HS interface - are there more options for reference clock of the SRIO HS interface beside those in the table taken from datasheet ?

Ohad

0 Rajarajan Uthayakumar over 3 years ago in reply to Ohad Fundoianu

TI__Expert 4314 points

Hi Ohad,

I apologise for the misunderstanding,

The answer is No. There were no other options for SRIO SGMII CLK.

You can find more application information for the reference clocks in Chapter 3 of the Hardware Design Guide for KeyStone I Devices (SPRABI2C). All PLLs will need to be properly configured for this input clock rate. Section 6.29 of the C6655 DM contains a table showing the standard PLL configurations based on the bootmode pins and it contains a row for 250MHz.

Thanks,

Rajarajan U

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TMS320C6655: SRIO reference clocks option