SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
The EMIF memory controller has two active-low reset signals, CHIP_RST_n and MOD_G_RST_n. Both these reset signals are driven by the device system reset signal. This device does not offer the flexibility to reset just the EMIF state machine without also resetting the EMIF controller's memory-mapped registers. As soon as the device system reset is released (driven high), the EMIF memory controller immediately begins its initialization sequence. Command and data stored in the EMIF memory controller FIFOs are lost. Refer to Section 11.2 for more information on conditions that can cause a device system reset to be asserted.
When system reset is released, the EMIF automatically begins running the SDRAM initialization sequence described in Section 11.2.5.4. Even though the initialization procedure is automatic, a special procedure, found in Section 11.2.5.5 must still be followed.