SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
Figure 11-15 shows the hardware interface between the EMIF, a Samsung K4S641632H-TC(L)70 64Mb SDRAM device, and a SHARP LH28F800BJE-PTTL90 8Mb Flash memory. The connection between EMIF and the SDRAM is straightforward, but the connection between the EMIF and the Flash deserves a detailed look.
The address inputs for the Flash are provided by three sources. The A[18:0] address inputs are provided by a combination of the EM1A and EM1BA pins according to Section 11.2.6.1, and a set of GPIO pins. The RD/nBY signal from Flash is connected to EM1WAIT pin of the EMIF.
Finally, this example configuration connects the EM1WE pin to the nWE input of the Flash and operates the EMIF in select strobe mode.