TLV320ADC3001: Write only register

Junichiro Tomita

Prodigy 10 points

Part Number: TLV320ADC3001

Hi,

Are the following registers write-only ??

PAGE 4: ADC Programmable Coefficients RAM (1:63)
PAGE 5: ADC Programmable Coefficients RAM (65:127)

When I read these registers, it returns always 0.

over 1 year ago

0 Ore Ogundana over 1 year ago

TI__Expert 6455 points

Thank you for bringing this to our attention. Allow 48hrs for a response to the issue

0 Ore Ogundana over 1 year ago

TI__Expert 6455 points

Hey Junichiro,

The datasheet usually states if a register is a Read or Write (R/W) register... but for your case the page 4 and 5 registers can be written to but have not been explicitly defined as registers you can read as well. I would need this week to find out if those registers you mentioned can be read as well.

Ore.

0 Junichiro Tomita over 1 year ago in reply to Ore Ogundana

Prodigy 10 points

Thank you for your reply.

Please check if it is a write-only register.

I look forward to your reply.

0 Ore Ogundana over 1 year ago in reply to Junichiro Tomita

TI__Expert 6455 points

No problem. expect an update this week.

Regards,

Ore

+1 Ore Ogundana over 1 year ago in reply to Junichiro Tomita

TI__Expert 6455 points

Hello Junichiro,

If you look through this app note attached to the product page, Coefficient RAM Access Mechanisms.. (Rev. D), it goes into details on how to access the registers for this ADC. I have attached a screenshot describing how to access registers:

I hope this was able to answer your question.

Regards,

Ore.

0 Junichiro Tomita over 1 year ago in reply to Ore Ogundana

Prodigy 10 points

Hi Ore,

Thank you for your kind support. I understand a Coefficient RAM mechanism.

I really appreciate!

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TLV320ADC3001: Write only register