Mdio_Cfg Struct Reference

Detailed Description

MDIO module configuration.

Configuration parameters for the MDIO module.

Data Fields
Mdio_OpMode	mode
uint32_t	mdioBusFreqHz
uint32_t	phyStatePollFreqHz
uint32_t	pollEnMask
uint32_t	c45EnMask
bool	isMaster

Field Documentation

mode

Mdio_OpMode Mdio_Cfg::mode

MDIO module operating mode

mdioBusFreqHz

uint32_t Mdio_Cfg::mdioBusFreqHz

MDIO bus clock (MDCLK) frequency in Hz

phyStatePollFreqHz

uint32_t Mdio_Cfg::phyStatePollFreqHz

Polling inter packet gap frequency in Hz

pollEnMask

uint32_t Mdio_Cfg::pollEnMask

Indicates which PHY addresses have polling enabled. The ENET_MDIO_PHY_ADDR_MASK macro should be used to create the mask. Only two PHYs can be monitored in Normal Mode, so only two bits must be set if operating in that mode.

c45EnMask

uint32_t Mdio_Cfg::c45EnMask

Indicates which PHY addresses will use Clause-45 frame format. The ENET_MDIO_PHY_ADDR_MASK macro should be used to create the mask

isMaster

bool Mdio_Cfg::isMaster

MDIO module can be shared by multiple peripherals, so only one peripheral (master) must perform the MDIO initial configuration and be skipped by the other peripherals (slaves). There must be only one peripheral marked as master among the those that share the MDIO. This condition is not enforced in driver, so it's application's responsibility this requirement is met.