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AM335x GPMC question

Hi all,

 I'm working on am335x-starter-kit with ti-processor-sdk-linux-am335x-evm-02.00.02.11.

Now I try to let GPMC to be a local bus, then connect with a serial chip. I have some question about GPMC configration: 

I read the TRM in 7.1.3-GPMC high level programing and figure 7-41-Programing Model Top-Level Diagram,

there are two path shown, nor protocol and nand protocol, I just want to use local bus via GPMC as asynchronous read/write.

Also, I read the GPMC register GPMC_config1_i[10,11] means device type, 0h = NOR flash like, asynchronous and synchronous devices,

which path should I foloow, should I choose NOR path???

Thanks!