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_hw_enet_mmfr Union Reference

_hw_enet_mmfr Union Reference

HW_ENET_MMFR - MII Management Frame Register (RW) More...

#include <MK64F12_enet.h>


Detailed Description

HW_ENET_MMFR - MII Management Frame Register (RW)

Reset value: 0x00000000U

Writing to MMFR triggers a management frame transaction to the PHY device unless MSCR is programmed to zero. If MSCR is changed from zero to non-zero during a write to MMFR, an MII frame is generated with the data previously written to the MMFR. This allows MMFR and MSCR to be programmed in either order if MSCR is currently zero. If the MMFR register is written while frame generation is in progress, the frame contents are altered. Software must use the EIR[MII] interrupt indication to avoid writing to the MMFR register while frame generation is in progress.

Definition at line 1466 of file MK64F12_enet.h.