Cirrus Logic CS4970x4 - Manual (Page 25)

CS4970x4 Data Sheet
32-bit High Definition Audio Decoder DSP Family
DS752F1 25
Figure 17. External Memory Interface - SDRAM Auto Refresh Cycle
SD_CLKOUT
SD_CS#
SD_RAS#
SD_CAS#
SD_WE#
SD_DQMn
SD_An
SD_Dn
t
sdcmdv
t
sdcmdh
t
sdcmdv