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LAN9220 Datasheet(PDF) 110 Page - Microchip Technology

Part # LAN9220
Description  16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support
PDF  142 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9220 Datasheet(HTML) 110 Page - Microchip Technology

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LAN9220
DS00002417A-page 110
 2006-2017 Microchip Technology Inc.
5.5.9
SPECIAL MODES
Note 5-4
When MODE=111, the register 0 bits 13 and 8 are variable dependent on the auto-negotiated speed
and duplex.
Index (In Decimal):
18
Size:
16-bits
Address
Description
Type
Default
15-8
Reserved
RW,
NASR
7:5
MODE: PHY Mode of operation. Refer to Table 5-9 for more details.
RW,
NASR
111
4:0
PHYAD: PHY Address:
The PHY Address is used for the SMI address.
RW,
NASR
00001b
TABLE 5-9:
MODE CONTROL
MODE
Mode Definitions
Default Register Bit Values
Register 0
Register 4
[13,12,10,8]
[8,7,6,5]
000
10Base-T Half Duplex. Auto-negotiation disabled.
0000
N/A
001
10Base-T Full Duplex. Auto-negotiation disabled.
0001
N/A
010
100Base-TX Half Duplex. Auto-negotiation disabled.
CRS is active during Transmit & Receive.
1000
N/A
011
100Base-TX Full Duplex. Auto-negotiation disabled.
CRS is active during Receive.
1001
N/A
100
100ase-TX Half Duplex is advertised. Auto-
negotiation enabled.
CRS is active during Transmit & Receive.
1100
0100
101
Repeater mode. Auto-negotiation enabled.
100Base-TX Half Duplex is advertised.
CRS is active during Receive.
1100
0100
110
Reserved - Do not set the LAN9220 in this mode.
N/A
N/A
111
All capable. Auto-negotiation enabled.
X10X
Note 5-4
1111



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