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LAN9500AI Datasheet(PDF) 184 Page - Microchip Technology

Part # LAN9500AI
Description  LAN950x USB 2.0 to 10/100 Ethernet Controller
PDF  213 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9500AI Datasheet(HTML) 184 Page - Microchip Technology

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LAN950x
DS00001875A-page 184
 2010 - 2015 Microchip Technology Inc.
7.5.10
SPECIAL MODES REGISTER
Index (In Decimal):
18
Size:
16 bits
Bits
Description
Type
Default
15:8
RESERVED
RO
-
7:5
MODE
PHY Mode of operation. Refer to Table 7-7 for more details.
R/W
NASR
111b
4:0
PHYADD
PHY Address. The PHY Address is used for the SMI address.
R/W
NASR
00001b
TABLE 7-7:
MODE CONTROL
MODE
Mode Definitions
Default Register Bit Values
Register 0
Register 4
[13,12,8]
[8,7,6,5]
000b
10BASE-T Half Duplex. Auto-negotiation disabled.
000
N/A
001b
10BASE-T Full Duplex. Auto-negotiation disabled.
001
N/A
010b
100BASE-TX Half Duplex. Auto-negotiation disabled.
CRS is active during Transmit & Receive.
100
N/A
011b
100BASE-TX Full Duplex. Auto-negotiation disabled.
CRS is active during Receive.
101
N/A
100b
100ase-TX Half Duplex is advertised. Auto-
negotiation enabled. CRS is active during Transmit &
Receive.
110
0100
101b
Repeater mode. Auto-negotiation enabled. 100BASE-
TX Half Duplex is advertised. CRS is active during
Receive.
110
0100
110b
RESERVED - Do not set the device in this mode.
N/A
N/A
111b
All capable. Auto-negotiation enabled.
X1X
1111



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