POST codes on Xbox are sent by the southbridge via I2C to an optional MAX6958 IC to be displayed via 4x 7-Segment-Displays.
I2C Address: 0x38
f.e. I2C SDA/SCL pads from FACET connector or RF Unit can be used.
TBD
- MAX6958 Datasheet
- MAX6958 Display module - Open source design by Martin Feldtmann