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vkc's avatar
vkc
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5 years ago

8b/10b in altgx

Hii,I am working on sata protocol,I am using stratix 4 device for the same and I have enabled 8b/10b encoding scheme, I have used the word alignment pattern as 0010111100(k28.5) on both transmitter an...
SengKok_L_Intel's avatar
SengKok_L_Intel
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi


Are you performing a loopback test (TX -> RX)? Is this internal or external?

Can you please start with 8 bits data first for easier debugging, and then do let us know what data actually receive at the receiver?


Regards -SK


  • vkc's avatar
    vkc
    Icon for New Contributor rankNew Contributor
    5 years ago

    Hii, when i sent BC(k28.5) from the transmitter side my making the control code 1 i have recieved data correctly at the reciever .But when i sent a D word(01100110) by making control code 0 on the reciever side i have recieved as (01111001).

    I have gone through stratix 4 transciever architecture specifications, according to my understanding for valid k groups control code has to be made 1 and for D words it is 0. Correct me if I am wrong.