The PMBus header provides access to the card's PMBus interface when supported
by the card. It is compatible with the Renesas PMBus dongle [Ref 10].
Note: When
using an external tool, the satellite controller must be in reset, otherwise
accesses from the external tool and satellite controller will overlap and hang
the bus.
| Signal | Pin | Pin | Signal |
|---|---|---|---|
| NC | 1 | 2 | NC |
| GND | 3 | 4 | PMBUS_SCL |
| PMBUS_ALERTB | 5 | 6 | PMBUS_SDA |