LAN9420I-NU SMSC, LAN9420I-NU Datasheet - Page 145

• Manufacturer Part Number: LAN9420I-NU
• Description: IC ETHERNET CTRLR SGL 128VTQFP
• Manufacturer: SMSC
• Type: Single Chip MAC and PHY Controllerr

Specifications of LAN9420I-NU

• Controller Type: Ethernet Controller
• Interface: PCI
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 145mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Product: Ethernet Controllers
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 MB, 100 MB
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.6 V
• Maximum Operating Temperature: + 85 C
• Ethernet Connection Type: 10/100 Base-T
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 638-1085

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
Datasheet
SMSC LAN9420/LAN9420i
4.5.10
12:11
BITS
9:5
3:0
15
14
13
10
4
Override AUTOMDIX_EN Strap
0 = AUTOMDIX_EN configuration strap enables or disables HP Auto MDIX.
1 = Override AUTOMDIX_EN configuration strap. PHY Register 27.14 and
Auto-MDIX Enable
Only effective when 27.15=1, otherwise ignored.
0 = Disable Auto-MDIX. 27.13 determines normal or reversed connection.
1 = Enable Auto-MDIX. 27.13 must be set to 0.
Auto-MDIX State
Only effective when 27.15=1, otherwise ignored.
When 27.14 = 0 (manually set MDIX state):
When 27.14 = 1 (automatic MDIX) this bit must be set to 0.
Do not use the combination 27.15=1, 27.14=1, 27.13=1.
RESERVED
VCOOFF_LP
Forces the Receive PLL 10M to lock on the reference clock at all times: 0
– Receive PLL 10M can lock on reference or line as needed (normal
operation) 1 - Receive PLL 10M is locked on the reference clock. In this
mode 10M data packets cannot be received.
RESERVED
XPOL
Polarity state of the 10BASE-T:
0 – Normal polarity
1 – Reversed polarity
RESERVED
Special Control/Status Indications
27.13 determine MDIX function.
0 = no crossover (TPO = output, TPI = input)
1 = crossover (TPO = input, TPI = output)
Index (In Decimal):
DESCRIPTION
27
DATASHEET
145
Size:
16 bits
NASR
TYPE
R/W,
R/W
R/W
R/W
RO
RO
RO
RO
Revision 1.4 (12-17-08)
DEFAULT
0b
0b
0b
0b
0b
-
-
-