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TMS320C6748: TMS320C6748的SD卡接口问题

Part Number: TMS320C6748
Other Parts Discussed in Thread: AM5728

TMS320C6748的SD卡接口是支持到2.0的吧?想请教两个问题;

1.TI是否有这种低功耗的,有支持SD卡3.0接口的并且带sata 2.0接口的DSP芯片呢?

2.SD卡2.0接口和SD卡3.0接口的外部硬件电路是不是不一样?还是就是单纯的协议上面的区别?TI是否有相关的硬件文档和软件文档说明,谢谢