SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
Table 17-83 lists the turnaround time that EMIF introduces on the data bus for various back-to-back accesses. The EMIF takes advantage of the CAS latencies and packs the commands as close as possible on the control bus to introduce the following turnaround time on the data bus.
Current Access | Next Access | Turnaround Time (Number of DDR Clock Cycles) |
---|---|---|
SDRAM write | SDRAM read | EMIF_SDRAM_TIMING_1[2:0] T_WTR + 1 + CL |
SDRAM read | SDRAM write | EMIF_SDRAM_TIMING_1[31:29] T_RTW + 1 |