3.2.8.3.3 External Chip Reset
When the Reset push button switch is pressed, the device places all pins into their default state and the entire contents of the EEPROM or OTP are reloaded. An additional PIO (PC2) allows the LAN7850 to be reset by software.
The figure below illustrates the implementation of the Ethernet HSIC interface.
| PIO | Mnemonic | Shared | Signal Description |
|---|---|---|---|
| – | HSIC_STROBE | – | Bidirectional data strobe signal |
| – | HSIC_DATA | – | Bidirectional Double Data Rate (DDR) data signal that is synchronous to the strobe signal |
| PC22 | VBUS_DETECT | – | Sets the state of the upstream bus power |
| PC23 | PME_N | – | Indicates Power Management Event when the PME mode of operation is in effect |
| PC24 | PME_MODE | – | Serves as the Power Management Event mode selection input when the PME mode of operation is in effect |