TUSB1210: How to set Tusb1210 mode in detail

frank tu

Part Number: TUSB1210

Tusb1210 will be used in Facebook's case.In this case Fpga connect Tusb1210's ULPI. Tusb1210 connect ast2520（CPU） via usb2.0.Untill now,we want ast2520 to be a master.There is some questiones:

1.Reference clock input must be square-wave in datasheet.Can CMOS Oscillator be used?

2.how to set pins for master or slave mode .

3.when AST2520 communicate with fpga for slave mode, Could you provide process in detail .

4.Cound modes can be switched after power on?

over 5 years ago

0 Brian Zhou over 5 years ago

TI__Guru*** 146055 points

AST2520 is OTG ?

0 Brian Zhou over 5 years ago in reply to Brian Zhou

TI__Guru*** 146055 points

Frank:

Reference CLK signal has to be 3.3v square wave, if CMOS Oscillator out put is square wave then it should work.

I can't find datasheet of ASt2520, but from what I can find it is a hub controller, that means it can not change mode.

FPGA and TUSB1210 can be used OTG, so it can be either as host (master) or device ( slave).

So to fully understand your design, can you send us AST2520 datasheet?

0 Brian Zhou over 5 years ago in reply to Brian Zhou

TI__Guru*** 146055 points

if CPU can not support OTG, then it can not change mode. CPU normally acts as host or master and FPGA\1210 will be devices ( slave).

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TUSB1210: How to set Tusb1210 mode in detail