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SMSC LAN9512
USER MANUAL
Revision 1.0 (05-21-09)
LAN9512 Evaluation Board User Manual
1 Introduction
The LAN9512 is a high performance, Hi-Speed USB 2.0 hub with a 10/100 Ethernet controller. The
LAN9512 contains an integrated USB 2.0 hub, two integrated downstream USB 2.0 PHYs, an
integrated upstream USB 2.0 PHY, a 10/100 Ethernet PHY, a 10/100 Ethernet controller, a TAP
controller, and an EEPROM controller.
The EVB9512 is an Evaluation Board (EVB) that utilizes the LAN9512 to provide a two port USB 2.0
hub with an integrated 10/100 Ethernet controller. The EVB9512 provides USB connectivity via one
type B upstream USB connector and two type A downstream USB connectors. An RJ-45 integrated
magnetics Ethernet jack with link/activity LEDs provides 10/100 Ethernet connectivity. The EVB9512
supports both bus-powered and self-powered modes of operation.
The EVB9512 includes a 512x8 Microwire EEPROM that may be used to automatically load USB
descriptors, USB device configuration, and the MAC address upon reset. A GPIO header provides
access to the LAN9512’s general purpose I/O signals. For debugging purposes, the internal LAN9512
TAP controller is accessible via the included JTAG header.
A simplified block diagram of the EVB9512 can be seen in
Figure 1.1.
USB
Upstream
JTAG Header
USB Type B
Connector
USB
Downstream
USB
Downstream
USB Type A
Connector
USB Type A
Connector
512 x 8
µWire
EEPROM
SMSC
LAN9512
10/100
Ethernet
Magnetics
& RJ45
Ethernet
1 x 10
GPIO Header
EVB9512
Figure 1.1 EVB9512 Block Diagram
1.1
References
Concepts and material available in the following documents may be helpful when using the EVB9512.
Table 1.1 References
DOCUMENT
LOCATION
http://www.smsc.com/main/datasheet.html
http://www.smsc.com/main/appnotes.html
http://www.smsc.com/
SMSC LAN9512
SMSC LAN9512 Datasheet
AN8-13 Suggested Magnetics
SMSC EVB9512 Evaluation Board Schematic
Revision 1.0 (05-21-09)
USER MANUAL
2
LAN9512 Evaluation Board User Manual
2 Board Details
The following sections describe the various board features, including jumpers, LEDs, test points,
system connections, and power. A top view of the EVB9512 is shown in
Figure 2.1.
Note:
The LAN9512 device is RoHS compliant. However, support components on the EVB9512
board are not necessarily RoHS compliant.
USB
Port 3
SMSC
LAN9512
USB
Port 2
Fuse
Power
Switch
JTAG
Header
JP27
JP9
+5V
Power
Input
JP1
JP22
GPIO
Header
(with integrated
magnetics & LEDs)
Ethernet
Port 1
USB
Port 0
(upstream)
Figure 2.1 EVB9512 Top View
SMSC LAN9512
USER MANUAL
3
Revision 1.0 (05-21-09)
LAN9512 Evaluation Board User Manual
2.1
Jumpers
Table 2.1
describes the default settings and jumper descriptions for the EVB9512. These defaults are
the recommended configurations for evaluation of the LAN9512. These settings may be changed as
needed, however, any deviation from the default settings should be approached with care and
knowledge of the schematics and datasheet. An incorrect jumper setting may disable the board.
Note:
A dashed line in the
Settings
column of
Table 2.1
indicates the board’s default jumper setting.
Table 2.1 Jumpers
JUMPER
DESCRIPTION
1
JP1
5 volt select jumper
2
SETTINGS
Populate when bus-powered
Populate when self-powered
(+5V power brick must be attached)
Auto-MDIX enabled
Auto-MDIX disabled
Populate when bus-powered
Populate when self-powered
Populate to enable 24MHz CLK24_OUT
Populate to disable 24MHz CLK24_OUT
2---3
1---2
2
1
3
2
JP9
Auto-MDIX jumper
JP22
VBUS_DET jumper
2---3
1
2
JP27
CLK24_EN jumper
2---3
2.2
LEDs
Table 2.2 LEDs
REFERENCE
LED3
LED4
LED5
LED8
T1
T1
COLOR
Green
Green
Green
Green
Green
Yellow
INDICATION
+3.3V power active
Power on downstream port 2
Power on downstream port 3
Full duplex on Ethernet port
Link/activity on Ethernet port
Speed on Ethernet port
Revision 1.0 (05-21-09)
USER MANUAL
4
SMSC LAN9512
LAN9512 Evaluation Board User Manual
2.3
Test Points
Table 2.3 Test Points
TEST POINT
TP2
TP3
TP4
TP5
TP7
TP8
DESCRIPTION
Single pin populated gold post GND testpoint GND
Single pin unpopulated nRESET
Single pin unpopulated CLK24_EN
Single pin unpopulated CLK24_OUT
Single pin unpopulated VDD18CORE
Single pin unpopulated VDD18USBPLL
nRESET
CLK24_EN
CLK24_OUT
VDD18CORE
VDD18USBPLL
CONNECTION
2.4
System Connections
Table 2.4 System Connections
PLUG/HEADER
J15
J16
P1
P3
P4
P5
DESCRIPTION
10-pin populated GPIO header
6-pin populated JTAG header
+5V DC power connector
USB type B right angle - upstream
USB type A right angle - downstream
USB type A right angle - downstream
PART
10-pin (1x10) header
6-pin (1x6) header
Barrel plug, 2.0mm, center positive
AMP 292304-1
FCI 87520-0010BLF
FCI 87520-0010BLF
2.5
Power
Table 2.5 Power Switch
SWITCH
S1
DESCRIPTION
SPDT tiny toggle power switch
PART
Connects +5V brick power to board
The EVB9512 supports both bus-powered and self-powered modes of operation. The following
subsections detail the proper power settings for bus-powered and self-powered operation.
