Hi, I used two TPS23861 as PSE controller. But one of them fail to power on PD.
1) Two TPS23861 support 8 ports, fist one related to port 1~4, and second one related to port 5~8; all ports of TPS23861 work in AUTO mode(reg0x12= 0xffff);
2) connect a PD to port 1~4, PD is powered down;
3) connect PD to port 5, PD can be powered up normally(same PD and same cable);
4) connect PD back to port 1, check detect status: the value of 0xc is 0x0;
5) power on port1 manually, PD is still powered down: write 0xfffd to reg 0x12, and then write 0x1 to 0x19;
6) read reg 0x2c/0x2e/0x2f, all of them return 0x00, something wrong with this TPS23861?
Thanks!!