Datasheet
SAM9G20
DS60001516A-page 624 2017 Microchip Technology Inc.
35.5.12 PHY Maintenance Register
Name:EMAC_MAN
Access:Read/Write
DATA
For a write operation this is written with the data to be written to the PHY.
After a read operation this contains the data read from the PHY.
CODE:
Must be written to 10. Reads as written.
REGA: Register Address
Specifies the register in the PHY to access.
PHYA: PHY Address
RW: Read/Write
10 is read; 01 is write. Any other value is an invalid PHY management frame
SOF: Start of frame
Must be written 01 for a valid frame.
31 30 29 28 27 26 25 24
SOF RW PHYA
23 22 21 20 19 18 17 16
PHYA REGA CODE
15 14 13 12 11 10 9 8
DATA
76543210
DATA