ZHCSS38 july 2020 TSB82AF15-EP
PRODUCTION DATA
The 1394b OHCI function within the TSB82AF15-EP is not powered by VAUX. Therefore, during the D3cold power-management state, VAUX is not supplied to the 1394b OHCI function.
This implies that the 1394b OHCI function does not implement sticky bits must be initialized after a D3cold power-management state. An external serial EEPROM interface is available to initialize critical configuration register bits. The EEPROM download is triggered by the deassertion of the PERST input. Otherwise, the BIOS must initialize the 1394b OHCI function.