SMSC EVB8700 Скачать руководство пользователя страница 3

LAN8700 Evaluation Board User Manual

SMSC LAN8700

USER MANUAL

Revision 1.0 (02-23-10)

3

 

2 Board Details

This section includes the following EVB8700 board details:

„

Power

„

Configuration

„

Mechanicals

2.1

  Power

Power is normally supplied to the EVB8700’s +3.3V regulator externally via the +5V power pins of the
MII connector. If desired, the EVB8700 can be powered w5V present on the MII connector by
sup5V to the TP2 test point with ground connected to pin 20 of header J2. 

Note:

Before connecting an external power supply to TP2, ensure power is not present on the MII
connector’s +5V pins. Conn5V simultaneously via the MII connector and TP2 may
result in permanent damage to the board. 

2.2

  Configuration

The following sub-sections describe the various board features and configuration settings. A top view
of the EVB8700 is shown in 

Figure 2.1

.

Note:

Though the LAN8700 supports an RMII mode of operation and/or use of an ex1.8V
regulator, the EVB8700 does not support these modes.

Figure 2.1 EVB8700 Top View

TP2

+5V

TP3

+3.3V

Female MII 

Connector 

Ethernet Port

(integrated  LEDs)

LED1

LED2

Reset 

Switch

MII 

Testpoints

LAN8700

Содержание EVB8700

Страница 1: ...n request SMSC products are not designed intended authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe...

Страница 2: ...0 pin female MII connector from an existing MAC controller to the SMSC LAN8700 Ethernet PHY and out to an RJ45 Ethernet Jack for 10 100 connectivity A simplified block diagram of the EVB8700 can be se...

Страница 3: ...header J2 Note Before connecting an external power supply to TP2 ensure power is not present on the MII connector s 5V pins Connecting 5V simultaneously via the MII connector and TP2 may result in per...

Страница 4: ...LT PHYAD4 MSB R11 populated R11 unpopulated PHYAD3 R46 unpopulated R48 populated R36 populated LED2 anode connected to FDUPLEX pin flipped R46 populated R48 unpopulated R36 unpopulated LED2 cathode co...

Страница 5: ...on on Power Down mode Table 2 3 MODE 2 0 Resistor Configuration MODE 2 0 MODE DEFINITIONS MODE 2 0 PULL DOWN RESISTORS R40 MODE2 R41 MODE1 R42 MODE0 000 10BASE T Half Duplex Auto negotiation disabled...

Страница 6: ...pulated R52 must be in the 2 3 position which routes TX_ER TXD4 to pin 11 of the J2 MII header For additional information on the functionality of the nINT TX_ER TXD4 pin refer to the LAN8700 Datasheet...

Страница 7: ...he nINTSEL configuration strap value Refer to Section 2 2 3 nINT TX_ER TXD4 Pin Configuration on page 6 for additional information 2 2 6 Switches Table 2 6 J2 2x14 MII Header Pinout HEADER PIN DESCRIP...

Страница 8: ...ard User Manual Revision 1 0 02 23 10 USER MANUAL SMSC LAN8700 8 2 3 Mechanicals Figure 2 2 details the EVB8700 mechanical dimensions Figure 2 2 EVB8700 Mechanicals 1 750 3 530 0 125 0 125 TOP VIEW 0...

Страница 9: ...tion Board User Manual SMSC LAN8700 USER MANUAL Revision 1 0 02 23 10 9 3 User Manual Revision History Table 3 1 Revision History REVISION LEVEL DATE SECTION FIGURE ENTRY CORRECTION Rev 1 0 02 23 10 I...

Страница 10: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Microchip EVB8700...

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