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LAN9500AI Datasheet(PDF) 21 Page - SMSC Corporation

Part # LAN9500AI
Description  USB 2.0 to 10/100 Ethernet Controller Promiscuous mode
PDF  66 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

LAN9500AI Datasheet(HTML) 21 Page - SMSC Corporation

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USB 2.0 to 10/100 Ethernet Controller
Datasheet
SMSC LAN950x Family
21
Revision 1.1 (04-18-13)
DATASHEET
Table 3.5 USB Pins
NUM PINS
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION
1
USB
DMINUS
USBDM
AIO
Note:
The functionality of this pin may be
swapped to USB DPLUS via the
PORT_SWAP configuration strap.
1
USB
DPLUS
USBDP
AIO
Note:
The functionality of this pin may be
swapped to USB DMINUS via the
PORT_SWAP configuration strap.
1
External USB
Bias Resistor.
USBRBIAS
AI
Used for setting HS transmit current level and on-
chip termination impedance. Connect to an
external 12K 1.0% resistor to ground.
1
USB PLL
Supply
VDDUSBPLL
P
This pin must be connected to VDDCORE for
proper operation.
Refer to Chapter 4, "Power Connections," on
page 25 and the device reference schematic for
additional connection information.
1
Crystal Input
XI
ICLK
External 25 MHz crystal input.
Note:
This pin can also be driven by a single-
ended clock oscillator. When this
method is used, XO should be left
unconnected
1
Crystal
Output
XO
OCLK
External 25 MHz crystal output.
Table 3.6 Ethernet PHY Pins
NUM PINS
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION
1
Ethernet TX
Data Out
Negative
TXN
AIO
The transmit data outputs may be swapped
internally with receive data inputs when Auto-
MDIX is enabled.
1
Ethernet TX
Data Out
Positive
TXP
AIO
The transmit data outputs may be swapped
internally with receive data inputs when Auto-
MDIX is enabled.
1
Ethernet RX
Data In
Negative
RXN
AIO
The receive data inputs may be swapped
internally with transmit data outputs when Auto-
MDIX is enabled.
1
Ethernet RX
Data In
Positive
RXP
AIO
The receive data inputs may be swapped
internally with transmit data outputs when Auto-
MDIX is enabled.



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