Regarding to EMIFA of TMS320C6749 access the NAND flash, I am wondering should I write software to realize those read/write accesses. If I use NAND flash as bootloader ROM, the internal DSP ROM bootloader has to interface software to access NAND flash? If it is true, then some parameters such as TA, RS, RST, RH, WS and WST, etc are useless since I can use software to control those timings. Where I can find the reference guide for EMIFA of TMS320C6749? I have srpu711c.pdf: TMS320C672x DSP External Memory Interface (EMIF) User’s Guide Thanks.