LAN8740A Datasheet, PDF (70/136 Pages) Microchip Technology – Small Footprint MII/RMII 10/100 Energy Efficient Ethernet Transceiver with HP Auto-MDIX and flexPWR® Technology

LAN8740A/LAN8740Ai
4.2.11 MMD ACCESS ADDRESS/DATA REGISTER
Index (In Decimal): 14
Size:
16 bits
This register in conjunction with the MMD Access Control Register provides indirect access to the MDIO Manageable
Device (MMD) registers. Refer to Section 4.3, "MDIO Manageable Device (MMD) Registers" for additional details.
Bits
Description
15:0 MMD Register Address/Data
If the MMD Function field of the MMD Access Control Register is “00”, this
field is used to indicate the MMD register address to read/write of the device
specified in the MMD Device Address (DEVAD) field. Otherwise, this register
is used to read/write data from/to the previously specified MMD address.
Type
R/W
Default
0000h
DS00001987A-page 70
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