Write, or Mask Write command, WCK must be synchronized to CK by issuing a CAS command with (WS_RD, WS_WR or WS_FS) followed by a Read, Write, or Mask Write command.
解读:MRR操作和read操作类似,在MRR之前需要保证WCK处于sync状态,因为在MRR之间必须发送WS_RD(或者WS_FS)来开启wck的sync。在RL+tWCK2DQO之后MR值在DQ[7:0]上返回,维持8个UI。MRR的下一个命令必须间隔tMRR才能发送。 读命令或者写命令后跟着MRR命令 After a prior Read and Read with AP Command, the MRR ...
The LPDDR5 WCK2CK Synchronization process is initiated by aCAS commandwith the related bit enabled. The CAS command with WCK2CK Synchronization should be issued before the WRITE or READ command. Table 199 shows the CAS command with WCK2CK Synchronization bit (WS_WR, WS_RD, WS_FS). CAS co...
If expecting to use a discovery mechanism in hardware, this parameter must be set uniquely for all EMIFs that share a sideband. Otherwise, this parameter can be ignored / kept at the default value. Default value is 0 Legal values are: from 0 to 6 (Identifier: INSTANCE...
Instance ID of the EMIF IP. This is useful when using a discovery mechanism over the side-band interface, to identify which EMIF instance's mailbox is at which offset. If expecting to use a discovery mechanism in hardware, this parameter must be set uniquely for all EMIFs ...
Instance ID of the EMIF IP. This is useful when using a discovery mechanism over the side-band interface, to identify which EMIF instance's mailbox is at which offset. If expecting to use a discovery mechanism in hardware, this parameter must be set uniquely for all EMI...