DS280BR810: sch review

Vayne Li

Expert 1410 points

Part Number: DS280BR810
Other Parts Discussed in Thread: DS250DF810, , DS280DF810

Tool/software:

Hi Teams,

Please help review the schematic diagram,thanks~

retimer_DS280BR8.pdf

4 months ago

0 Drew Miller1 4 months ago

TI__Mastermind 38743 points

Hi Vayne,

Thanks for sharing. We will review and provide feedback early next week.

Thanks,

Drew

0 Vayne Li 4 months ago in reply to Drew Miller1

Expert 1410 points

Hi Drew,

What is the current status of this case? The customer needs to prepare for layout

0 Drew Miller1 4 months ago in reply to Vayne Li

TI__Mastermind 38743 points

Hi Vayne,

Please find feedback attached.

2235.Schematic Review.pdf

Thanks,

Drew

0 Vayne Li 3 months ago in reply to Drew Miller1

Expert 1410 points

Hi Drew,

My customer has some question as blow:

I2C device address as slave, how to dedicate the address or use pull-down/up same as chip select?
EEPROM firmware generation, download and configuration.

As you know, the retimer would work in master mode when programming EEPROM, after completion programming, it should work in slave mode to communicate with CPU.

In this case, how to switch the status from master to slave?

How to bring-up the retimer? Is there any SDK or other User Guide/User manual?
DS250DF810 Programming Guide.

0 Drew Miller1 3 months ago in reply to Vayne Li

TI__Mastermind 38743 points

Hi Vayne,

1. Address can be set through ADDR0/1 pins.

2. EEPROM .hex file can be generated using SigCon Architect.

Vayne Li said:
In this case, how to switch the status from master to slave?

The device will automatically switch to slave mode after EEPROM read is complete.

3. Yes, we have a programming guide for DS280BR810 and DS250DF810. Please find these at folders below. You may need to request access.

https://www.ti.com/drr/opn/DS280BR810-DESIGN

https://www.ti.com/drr/opn/DS250DF810-DESIGN

Thanks,

Drew

0 Vayne Li 3 months ago in reply to Drew Miller1

Expert 1410 points

Hi Drew,

Thank you for your reply.

Please allow me to ask another question, are the pins of DS280DF810 and DS250DF810 compatible?

0 Drew Miller1 3 months ago in reply to Vayne Li

TI__Mastermind 38743 points

Hi Vayne,

The only difference between these devices is CDR lock range. These devices are pin to pin compatible.

Thanks,

Drew

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DS280BR810: sch review