Forum Discussions (201)
| Discussions | Replies | Latest Activity |
|---|---|---|
DDR5 CA bus mapping onto DFI addressHi,DFI specs 5.0 is not clear to me in mapping CA bus onto DFI address for DDR5, What I found so far is the following: "For low power memor… Started by Mohamed Rayan |
1 |
Apr 8 Reply by Mohamed Rayan |
DFI signals for DDR5The following signals are listed in the DFI 5.0 specification as being required for DDR5 but it is not obvious what they would map to on th… Started by Laurence Davies |
0 | Apr 5 |
Width of dfi_lp_*_wakeup signal in DFI 5.0In Table 22 of the DFI 5.0 specification, the signals dfi_lp_ctrl_wakeup and dfi_lp_data_wakeup are defined as 4-bits wide. However, they a… Started by Laurence Davies |
2 |
Apr 5 Reply by Laurence Davies |
LPDDR5 write interleaving featureThere is a special case write in the LPDDR5 DDR standard which requires insertion of a gap at the middle of the burst 32 write like the fol… Started by Ramy Ahmed Ali |
0 | Apr 1 |
Two questions about Read Data Interface and Update InterfaceHello. I have an questio while designing PHY checking the DFI 5.0. 1) Seeing Figure 49, the values in PHY dfi_rddata are D0, D1, D2, D3, D4… Started by Dongha Kim |
3 |
Mar 27 Reply by Dongha Kim |
DFI 5.0 read and write interface signaling and their clock domainsHi, I would like to ask about the write/read interface signals (like "dfi_wrdata_en_p0,1,2,3") as they are synced to the DFI clock as per… Started by Ramy Ahmed Ali |
1 |
Mar 6 Reply by John MacLaren |
DDR timing consecutive read/write or mix of them with different chip selectHello everybody, I meet some problems concerned to the timing between command read to read, write to write, read to write and write to rea… Started by Victor |
0 | Feb 7 |
DDR4-MPSM-PDAHello, In MPSM entry with PDA mode, which exits first? MPSM or PDA? Thanks in advance! Started by Prateek |
0 | Jan 31 |
DFI data widthHello, I'm new to this topic. Can you tell me why dfi write data bus width is generally twice the width of DRAM data bus? Is this because o… Started by Prateek |
1 |
Jan 24 Reply by John MacLaren |
DFI training in 5.0Hello, I am wondering why the training interface is removed in the latest DFI 5.0 specs. It is mentioned in the release information that t… Started by Ramy Ahmed Ali |
1 |
Nov 12, 2018 Reply by John MacLaren |
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