maple register: DMY_REG5
Details
- Name
- DMY_REG5
- Offset
- 0144
- Feature
- MAC_CONTROL
Description
Extra GPIO MDIO bus control register.
Fields
Name | LSB | Bits | Description |
---|---|---|---|
DUMMY | 4 | 28 |
|
GPIO_PREAMBLE_SEL | 2 | 2 |
Auxiliary MDIO/SMI frame preamble length.
|
EXTRA_GPIO_EN | 1 | 1 |
Enable external GPIO (RTL8231) peripheral register shadowing. Must be cleared before changing other settings describing the extra GPIO chip. |
GPIO_INTF_SEL | 0 | 1 |
Interface type. 0 for I2C bus, 1 for MDIO bus. |