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LevelOne LXT970A, Руководство пользователя

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LevelOne LXT970A Скачать руководство пользователя страница 8

8

29

1

U3

DEC 21143 LAN Controller

144-pin PQFP 

30

1

U4

1k bit 5V EEPROM 8 DIP Pkg

31

1

U7

Surface Mount PLCC Pkg - 90ns

32

1

U8

3.3V Low Dropout Reg SOT-223 Pkg

33

1

Y1

25MHz Crystal HC49 Case

34

1

IC Socket for U7

32-pin Solder Trail PLCC Socket

35

1

IC Socket for U1

64-pin QFP Surface Mount IC Socket

36

1

IC Socket for U4

8-pin Solder Tail (Gold) DIP Socket

Table 7:

LXD970 NIC Demo BOM

 – continued

Item

Qty

Reference

Description

Содержание LXT970A

Страница 1: ...70A NIC Demo Board is operated with a single 5V power supply A complete Bill of Materials and schematics are included for reference Before using the NIC Demo Board review the latest LXT970A Fast Ethernet Transceiver data sheet for the most current information Quick setup and ease of use for complete system demonstration LXT970A Fast Ethernet Transceiver DEC 21143 PB LAN Controller Netware Driver s...

Страница 2: ...p all the files found on the 21143 Driver Software Disk Files included on the disk are DC21X4 cli DC21X4 com DC21X4 hdi DC21X4 ins IPXODI com LSL com NET cfg Startnet bat Vtm exe Readme txt The software disk was shipped with write protection engaged Ensure the write protection of the disk is engaged by verifying the two square holes at the top of the disk are exposed You can write protect the file...

Страница 3: ...r EMI testing Turn ON the PC and verify the drivers are loaded properly If a problem occurs check the jumper settings and the Startnet bat and net cfg files LED Indicators There are 6 status LEDs on the LXT970A NIC Demo Board Refer to Table 2 for LED descriptions Table 1 LXT970A NIC Jumper Setup Mode Selection Jumpers Jumper Pin Placement Nibble Mode JP2 Pins 2 and 3 Normal MII JP3 Operation JP4 4...

Страница 4: ...4 are shown in Table 3 To select an Input Level place a jumper on the appropriate pins as shown in Figure 1 The 4 level input pins VMF1 VMF2 VMF3 and VMF4 are identical for each Multi Function MF section Figure 1 Hardware Control Interface Jumper Placement Table 3 MF Pins Input Voltage Levels Parameter Symbol Min Max Units Input Voltage Level 1 VMF1 Vcc 0 5 V Input Voltage Level 2 VMF2 Vcc 2 0 5 V...

Страница 5: ... 1 1 0 0 Repeater DTE Mode Sets the initial value of bit 19 13 DTE 19 13 0 Repeater 19 13 1 Repeater 19 13 1 DTE 19 13 0 MF2 Address Bit 2 1 1 0 0 Nibble 4B Symbol 5B Mode Sets the initial value of bit 19 4 Nibble 4B 19 4 0 Symbol 5B 19 4 1 Symbol 5B 19 4 1 Nibble 4B 19 4 0 MF3 Address Bit 3 1 1 0 0 Scrambler Operation Sets the initial value of bit 19 3 Enabled 19 3 0 Bypassed 19 3 1 Bypassed 19 3...

Страница 6: ... only Follow FDE VMF2 VMF3 Jumper Installed Advertise 10 100 Mbps Follow FDE Table 6 Additional Hardware Control Interface Functions Jumper Label Function Status Jumper Installed Jumper Not Installed CFG0 Restart Negotiation when Auto Neg enabled 1 Enable X Disable X Speed Select when Auto Neg disabled 1 10Mbps X 100Mbps X FDE Full Duplex Enable X Disable X CFG1 Speed Advertisement Capabilities wh...

Страница 7: ...t Point 13 2 L5 L6 L7 L8 Ferrite SMD Bead P9812 14 1 JP9 25 pin Dual Row Header 15 6 R1 R2 R3 R4 R5 R59 332Ω 1 Metal SMD Resistor 16 8 R10 R11 R14 R15 R17 R18 R19 R20 49 9Ω 1 Metal SMD Resistor 17 2 R12 R13 75Ω 1 Metal SMD Resistor 18 2 R57 R16 100Ω 1 Metal SMD Resistor 19 7 R21 R22 R23 R24 R25 R62 R63 4 75kΩ 1 Metal SMD Resistor 20 18 R27 R28 R29 R31 R32 R33 R34 R35 R36 R37 R38 R39 R40 R41 R54 R5...

Страница 8: ... 90ns 32 1 U8 3 3V Low Dropout Reg SOT 223 Pkg 33 1 Y1 25MHz Crystal HC49 Case 34 1 IC Socket for U7 32 pin Solder Trail PLCC Socket 35 1 IC Socket for U1 64 pin QFP Surface Mount IC Socket 36 1 IC Socket for U4 8 pin Solder Tail Gold DIP Socket Table 7 LXD970 NIC Demo BOM continued Item Qty Reference Description ...

Страница 9: ...9 Figure 2 LXT970A NIC DEC 21143 Interface ...

Страница 10: ...10 Figure 3 LXT970A NIC LXT970AQC Interface ...

Страница 11: ...11 Figure 4 LXT970A NIC ROM Interface ...

Страница 12: ...uite 100 Raleigh NC 27607 USA Tel 919 836 9798 Fax 919 836 9818 28202 Cabot Road Suite 300 Laguna Niguel CA 92677 USA Tel 949 365 5655 Fax 949 365 5653 Nishi Shinjuku Mizuma Building 8F 3 3 13 Nishi Shinjuku Shinjuku Ku Tokyo 160 0023 Japan Tel 81 3 3347 8630 Fax 81 3 3347 8635 Torshamnsgatan 35 164 40 Kista Stockholm Sweden Tel 46 8 750 3980 Fax 46 8 750 3982 Latin South America 9750 Goethe Road ...

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