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LAN9252/ML Datasheet(PDF) 157 Page - Microchip Technology

Part # LAN9252/ML
Description  2/3-Port EtherCAT® Slave Controller with Integrated Ethernet PHYs
PDF  329 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9252/ML Datasheet(HTML) 157 Page - Microchip Technology

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 2015 Microchip Technology Inc.
DS00001909A-page 157
LAN9252
11.2.16.10 PHY x MMD Access Control Register (PHY_MMD_ACCESS)
This register in conjunction with the PHY x MMD Access Address/Data Register (PHY_MMD_ADDR_DATA) provides
indirect access to the MDIO Manageable Device (MMD) registers. Refer to the MDIO Manageable Device (MMD) Reg-
isters on page 175 for additional details.
Index (In Decimal): 13
Size:
16 bits
Bits
Description
Type
Default
15:14
MMD Function
This field is used to select the desired MMD function:
00 = Address
01 = Data, no post increment
10 = RESERVED
11 = RESERVED
R/W
00b
13:5
RESERVED
RO
-
4:0
MMD Device Address (DEVAD)
This field is used to select the desired MMD device address.
(3 = PCS, 7 = auto-negotiation)
R/W
0h



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