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LAN8820I Datasheet(PDF) 52 Page - Microchip Technology

Part # LAN8820I
Description  RGMII 10/100/1000 Ethernet Transceiver
PDF  83 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN8820I Datasheet(HTML) 52 Page - Microchip Technology

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LAN8820/LAN8820I
DS00001871B-page 52
 2009-2015 Microchip Technology Inc.
4.2.22
PHY SPECIAL CONTROL / STATUS REGISTER
Note 4-9
Set according to the results of Auto-Negotiation.
Index (In Decimal): 31
Size:
16 bits
Bits
Description
Type
Default
15:13
RESERVED
RO
-
12
Auto-negotiation done indication
0 = Auto-negotiation is not done or disabled (or not active)
1 = Auto-negotiation is done
Note:
This is a duplicate of register 1.5, however reads to register 31 do
not clear status bits.
RO
0b
11:5
RESERVED
RO
-
4:2
Speed Indication
HCDSPEED value:
[001]=10Mbps Half-duplex
[101]=10Mbps Full-duplex
[010]=100BASE-TX Half-duplex
[110]=100BASE-TX Full-duplex
RO
Note 4-9
1:0
RESERVED
RO
-



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