Maxim Integrated DS33Z41 - Manual (Page 128)

DS33Z41 Quad IMUX Ethernet Mapper
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Register Name:
SU.MACMIID
Register Description: MAC MII (MDIO) Data Register
Register Address: 0018h (indirect)
0018h:
Bit
# 31 30 29 28 27 26 25 24
Name Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved
Default 0 0 0 0 0 0 0 0
0019h:
Bit
# 23 22 21 20 19 18 17 16
Name Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved
Default 0 0 0 0 0 0 0 0
001Ah:
Bit
# 15 14 13 12 11 10 09 08
Name MIID15 MIID14 MIID13 MIID12 MIID11 MIID10 MIID09 MIID08
Default
0 0 0 0 0 0 0 0
001Bh:
Bit
# 07 06 05 04 03 02 01 00
Name MIID07 MIID06 MIID05 MIID04 MIID03 MIID02 MIID01 MIID00
Default 0 0 0 0 0 0 0 0
Bits 15 to 0: MII (MDIO) Data (MIID15 to MIID00). These two bytes contain the data to be written to or the data
read from the MII management interface (MDIO).