SAM7X256_14 Datasheet, PDF (562/662 Pages) ATMEL Corporation – ARM-based Flash MCU

37.5.12 PHY Maintenance Register
Register Name:
EMAC_MAN
Access Type:
Read-write
31
30
29
28
27
SOF
RW
23
22
PHYA
21
20
19
REGA
15
14
13
12
11
DATA
7
6
5
4
3
DATA
• 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.
26
25
24
PHYA
18
17
16
CODE
10
9
8
2
1
0
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
562