T-SeriesのトピックCLK for DDR4 https://community.nxp.com/t5/T-Series/CLK-for-DDR4/m-p/625511#M1665 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I am using a x8 configuration for DDR4, ie 8 chips for data and one for ECC. Now each chip requires clock. The processor I'm using is T1042. t has two clock outputs ( CLK 0 and 1). So how should I connect them ??&nbsp;</P><P>Can you let me know about the CKE as well.&nbsp;</P><P></P><P>Regards&nbsp;</P><P>Gokul</P></BODY></HTML> Fri, 25 Nov 2016 13:27:11 GMT gokulkrishnan 2016-11-25T13:27:11Z CLK for DDR4 https://community.nxp.com/t5/T-Series/CLK-for-DDR4/m-p/625511#M1665 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I am using a x8 configuration for DDR4, ie 8 chips for data and one for ECC. Now each chip requires clock. The processor I'm using is T1042. t has two clock outputs ( CLK 0 and 1). So how should I connect them ??&nbsp;</P><P>Can you let me know about the CKE as well.&nbsp;</P><P></P><P>Regards&nbsp;</P><P>Gokul</P></BODY></HTML> Fri, 25 Nov 2016 13:27:11 GMT https://community.nxp.com/t5/T-Series/CLK-for-DDR4/m-p/625511#M1665 gokulkrishnan 2016-11-25T13:27:11Z Re: CLK for DDR4 https://community.nxp.com/t5/T-Series/CLK-for-DDR4/m-p/625512#M1666 <HTML><HEAD></HEAD><BODY><P>Have a great day,</P><P>The T1042 supports 32-bit and 64-bit DDR data bus width. I suppose that you are going implement the 64-bit data bus so all 8 chips will be connected to the same chip select MSC0 ( or MCS1). In this case they all ought be connected to the same clock enable CKE0 if MCS0 (or CKE1 if MCS1) is used. The fly-by routing is recommended for address, command, control, and clock signal bus. You may use single differential clock pair for all 8 chips in fly-by mode. Any of the MCKE0/MCKE0 or MCKE1/MCKE1 can be used.</P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Mon, 28 Nov 2016 09:00:09 GMT https://community.nxp.com/t5/T-Series/CLK-for-DDR4/m-p/625512#M1666 r8070z 2016-11-28T09:00:09Z