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TMDS181: Asking for the recommendation on how to read TMDS181 in redriver or retime mode by PLL_LOCK bit

SHH

Mastermind 31446 points

Part Number: TMDS181

Hi Team,

Customer is looking ofr how to know TMDS181 in redriver or retime mode by PLL_LOCK bit.

Would you please show us how to find this fit on the TMDS181 datasheet?

https://e2e.ti.com/support/interface/f/138/p/752207/2791070?tisearch=e2e-sitesearch&keymatch=tmds181%20redriver#2791070

BR,

SHH

over 6 years ago

0 Brian Zhou over 6 years ago

TI__Guru*** 131480 points

PLL lock bit is on Page 1, register 0x00, bit 6 and 7. sorry, it's not on datasheet

0 SHH over 6 years ago in reply to Brian Zhou

TI__Mastermind 31446 points

Hi Brian,
Would you please let us know how to select page 1 and what the value in bit6:bit 7 meaning for PLL lock and PLL_unlock?
customer need to know detail in redriver or retimer mode.

BR,
SHH

0 Brian Zhou over 6 years ago in reply to SHH

TI__Guru*** 131480 points

in I2C,
FF 01 --> into page1
pls check register 0x00 bit 0
if bit 0 is 1 means PLL enable in retimer mode
if bit 0 is 0 means PLL not enable in redriver mode

0 Brian Zhou over 6 years ago in reply to Brian Zhou

TI__Guru*** 131480 points

does it help?

0 ACM over 6 years ago in reply to Brian Zhou

Prodigy 130 points

Hi Brian,

is not possible to have a simple document with all (or at least the most common request) register bit description?

Thank you

0 Brian Zhou over 6 years ago in reply to ACM

TI__Guru*** 131480 points

They need to request NDA to get all registers information, but I can reply what it is for each particular register

0 Brian Zhou over 6 years ago in reply to Brian Zhou

TI__Guru*** 131480 points

do you have more question?