To enable UART A at COM1 (0x3F8, IRQ4), write to register 0x60 = 0xF8, 0x61 = 0x03, and 0x70 = 0x04.
This chip acts as the "brain" for hardware management before and after the main OS boots: Power Management it8995e 128 datasheet
High-level soldering skills are needed due to the 128-pin high-density layout. To enable UART A at COM1 (0x3F8, IRQ4),