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SMSC EVB8740/EVB8741

Revision 1.0 (04-29-13)

USER MANUAL

 

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Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for
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version of SMSC's standard Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or errors
known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly sheets are available upon 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 property
damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of
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EVB8740/EVB8741 Evaluation Board User Manual

Summary of Contents for EVB8740

Page 1: ...for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage Any and all such uses without prior written approval of a...

Page 2: ...tor The LAN8740A LAN8741A is connected to an RJ45 Ethernet jack with integrated magnetics for 10 100 connectivity A simplified block diagram of the EVB8740 EVB8741 can be seen in Figure 1 1 Note Thoug...

Page 3: ...r is not present on the MII connector s 5V pins Connecting 5V simultaneously via the MII connector and TP2 may result in permanent damage to the board 2 1 2 VDDIO Power The LAN8740A LAN8741A s VDDIO p...

Page 4: ...p View of the EVB8740 EVB8741 Table 2 1 PHYAD 2 0 Resistor Configuration PHYAD 2 0 PHYAD 2 0 PULL UP DOWN RESISTORS PHYAD2 PHYAD1 PHYAD0 R26 R35 R25 R36 R24 R37 000 Default Depopulate Populate Depopul...

Page 5: ...3 R29 R32 R30 R31 000 10BASE T Half Duplex Auto neg disabled Depopulate Populate Depopulate Populate Depopulate Populate 001 10BASE T Full Duplex Auto neg disabled Depopulate Populate Depopulate Popul...

Page 6: ...lator Configuration REGOFF The LAN8740A LAN8741A provides the ability to disable the internal 1 2V regulator When the regulator is disabled an external 1 2V must be supplied to the VDDCR pin via TP3 C...

Page 7: ...regulated output When REGOFF is enabled the internal 1 2V regulator is disabled In this case an external 1 2V regulator must be supplied to test point TP3 Note 2 2 The LAN8740A LAN8741A s VDDIO power...

Page 8: ...guration nINTSEL on page 6 for additional information Table 2 5 System Connections PLUG HEADER DESCRIPTION PART T1 RJ45 with Integrated LEDs Pulse J0011D01BNL J1 2x14 MII Header Note Refer Table 2 6 t...

Page 9: ...Switches Table 2 7 P1 40 Pin Female MII Connector Pinout PIN DESCRIPTION PIN DESCRIPTION PIN DESCRIPTION PIN DESCRIPTION 1 5V 11 TXER Note 2 5 21 5V 31 GND 2 MDIO 12 TXCLK 22 GND 32 GND 3 MDC 13 TXEN...

Page 10: ...Manual Revision 1 0 04 29 13 10 SMSC EVB8740 EVB8741 USER MANUAL 2 3 Mechanicals Figure 2 2 details the EVB8740 EVB8741 mechanical dimensions Figure 2 2 EVB8740 EVB8741 Mechanicals 1 450 3 000 0 125 0...

Page 11: ...ard User Manual SMSC EVB8740 EVB8741 11 Revision 1 0 04 29 13 USER MANUAL 3 User Manual Revision History Table 3 1 Customer Revision History REVISION LEVEL DATE SECTION FIGURE ENTRY CORRECTION Rev 1 0...

Page 12: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Microchip EVB8740...

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