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c6455 emifa 8 bit ROM加载启动问题



请教下:

c6455 emifa 8 bit ROM加载启动时 CE3外挂的FLASH必须是8 bit位宽的么,

我看手册第14页上说开机加电后DSP会以EMIFA寄存器离的默认参数配置运行 CE3空间里的软件程序,

那如果CE3外挂的是一个16 bit位宽的存储器,是不是DSP就加载不起来了。

目前处于硬件设计阶段,还请专家指点下,避免硬件问题。