Renesas R-IN32M3 Series User Manual page 166

R-IN32M3-EC User's Manual
7.4 MII Management Registers in Ethernet PHY
The MII management registers are included in the Ethernet PHY. These registers specify various settings of the Ethernet
PHY and capture the state of the Ethernet PHY. These registers can be accessed via the serial management interface from
each MAC, by accessing the MIIM register of on-chip Ethernet MAC or the MII management interface register of
EtherCAT slave controller.
Caution: Registers 8 to 15 are mirror registers of registers 24 to 31 and there are no actual registers 8
to 15. Access to registers 8 to 15 is prohibited.
Table 7.1 List of PHY MII Management Registers
Register Address
0 Control register
1 Status register
2 PHY identifier
3 PHY identifier
4 Auto-negotiation advertisement register
5 Auto-negotiation link partner ability register
6 Auto-negotiation expansion register
7 Auto-negotiation next page transmit register
8 Unsupported (Access prohibited for the mirror of register 24)
9 Unsupported (Access prohibited for the mirror of register 25)
10 Unsupported (Access prohibited for the mirror of register 26)
11 Unsupported (Access prohibited for the mirror of register 27)
12 Unsupported (Access prohibited for the mirror of register 28)
13 Unsupported (Access prohibited for the mirror of register 29)
14 Unsupported (Access prohibited for the mirror of register 30)
15 Unsupported (Access prohibited for the mirror of register 31)
16 Silicon revision register
17 Mode control/status register
18 Special mode register
19 Reserved
20 Reserved
21 Reserved
22 Reserved
23 BER counter register
24 FEQ monitor register
25 Diagnostic control/status register
26 Diagnostic counter register
27 Special control/status indication register
28 Reserved
29 Interrupt factor register
30 Interrupt factor mask register
31 PHY special control/status register
R18UZ0003EJ0501
Jan. 12, 2021
Register Name
7. Ethernet PHY Function
Type
Basic
Basic
Extension
Extension
Extension
Extension
Extension
Extension
-
-
-
-
-
-
-
-
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Vendor-specific
Page 153 of 224