I designed a circuit with hd3ss3220,but i have some problems
I used i2c conncet HD3SS3220,read the regiser value is ok.
the usb3.0 good circuit register value is
0x08: 0x00
0x09: 0x20
0x0a: 0x00
0xa0 : 0x02
my circuit register value is
0x08: 0x00 or 0x01
0x09: 0x70 or 0x50
0x0a: 0x00
0xa0 : 0x02
I queried the registers of the datasheet and did not understand the reason for the register changes. But I tried to adjust the connection direction of TX and RX so that they are connected in reverse. My register changes as follows.
0x08: 0x01 or 0x00
0x09: 0x70 or 0x38
0x0a: 0x00
0xa0 : 0x02
I measured the TX and RX signals at both ends of the chip when the HD3SS3220 was powered up. When the TYPE-C connection method was adjusted, they were turned on. I think I have not found the reason for the connection failure.
Can you tell me why the connection failed because of the change in register value?
