芯片TMS320DM8147的RGMII接口如何设置接口电压,appro开发板上的AR8031使用2.5V供电,但是有些参考电路使用3.3V供电,如下图所示接口;是兼容2.5V和3.3V呢,还是可以设置?具体在手册哪个地方有过讲解呢?
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芯片TMS320DM8147的RGMII接口如何设置接口电压,appro开发板上的AR8031使用2.5V供电,但是有些参考电路使用3.3V供电,如下图所示接口;是兼容2.5V和3.3V呢,还是可以设置?具体在手册哪个地方有过讲解呢?
请查AR8031手册
AR8031
can also work at 2.5 V RGMII I/O voltage and
3.3 V MAC RGMII interface. Since the input
can bear 3.3V logic signal, and the output logic
VoH and VoL can satisfy the 3.3V LVCMOS/
LVTTL requirement. Refer to
“Electrical
Characteristics”
for parameter details