Mine
public text v1 · immutableBefore enabling the device the first time (so probably meaningless):
REG_PORTSC1: 80001
REG_USBMODE: 80001
REG_USBCMD : 80001
After DEV_EN and DEV_RS
REG_PORTSC1: 20000004
REG_USBMODE: 0
REG_USBCMD : 80002
After disabling, connect and re-enable
REG_PORTSC1: 20000C04
REG_USBMODE: 0
REG_USBCMD : 80000
After initializing the controller:
REG_PORTSC1: 20000404
REG_USBMODE: 2
REG_USBCMD : 80001