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关于1.8V和3.3V的设置

Shang Frank
Intellectual 610 points


1,AM335X的GPMC,GEMAC.MMCSD,GENERAL都支持1.8V和3.3两种电压,请问怎么配置电压呢,是给对应的VDD输入1.8就是1.8V的bus,给3.3V的VDD就是 3.3V的bus吗?  还是有寄存器设置选择电压的模式阿?

2,可否设置其中一种为1.8V,另外的为3.3V,比如设置GPMC为1.8V,,GEMAC.MMCSD,GENERA为3.3V 呢?