leongch
Member level 2
For the DDR2 and DDR3, there are
1. ODT (On die termination)
2. TDQS (Termination Data Q strobe)
Actually, what's the reason of these Termination is needed? Use on what time ? Also the ODT pin is for what purpose?
In DDR3, there's this BC# option where we only read out the highbytes of DQ, actually in real application, do we really use this features?
Also the for the read operation of DDR3, even we set the burst type as sequential, but it seems like the read out data is depend on start of column address. May I know what's the actual reason the DDR3 SDRAM is designed in such a way ? Thanks
1. ODT (On die termination)
2. TDQS (Termination Data Q strobe)
Actually, what's the reason of these Termination is needed? Use on what time ? Also the ODT pin is for what purpose?
In DDR3, there's this BC# option where we only read out the highbytes of DQ, actually in real application, do we really use this features?
Also the for the read operation of DDR3, even we set the burst type as sequential, but it seems like the read out data is depend on start of column address. May I know what's the actual reason the DDR3 SDRAM is designed in such a way ? Thanks