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National Semiconductor DP8390, Руководство пользователя

National Semiconductor DP8390 - микросхема сетевого контроллера, обеспечивающая высокую скорость передачи данных. Для ознакомления с подробной информацией и настройками устройства, вы можете скачать бесплатный руководство пользователя на manualshive.com. Узнайте все возможности этого продукта уже сегодня!

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TL/F/12034 – 8

9

Содержание DP8390

Страница 1: ...that generates the tests Appendix A This document also discusses varia tions in loopback results caused by several common config uration errors Throughout this document the term NIC refers to the con...

Страница 2: ...TL F 12034 2 FIGURE 2 Loopback Mode 2 Through the Encoder Decoder TL F 12034 3 FIGURE 3 Loopback Mode 3 Through the TPI or CTI 2...

Страница 3: ...isters TBCR0 and TBCR1 are decremented 2 The NIC generates 56 bits of preamble followed by an 8 bit Start of Frame Delimiter 3 Data is transferred from the FIFO to the serializer 4 If the Inhibit CRC...

Страница 4: ...Register to 21h followed by a wait state of at least 1 5 ms for the NIC to reset c Program the desired loopback mode into the Transmit Configuration Register 6 Loopback only operates with byte wide t...

Страница 5: ...er to 21h If the NIC is currently receiving a packet it will wait for the reception of the current packet to complete before it will reset Thus a wait state of at least 1 5 ms is necessary to insure t...

Страница 6: ...tus Register is set The packet received bit is set only if status is written to memory In loopback this action does not occur hence the Packet Received bit remains 0 for all loopback modes Internal Lo...

Страница 7: ...SR ISR Mode 3 CTI 06H 1FH 0CH 02H 08H If the coax cable is disconnected the results will differ from those listed in Section 6 1 as follows Loopback Path TCR RCR TSR RSR ISR Mode 1 NIC 02H 1FH 40H 02H...

Страница 8: ...cription in Section 6 1 When executed the FIFO and register contents are printed to an output file output txt unless specified differently Refer to AN 874 Writing Drivers for the DP8390 NIC Family of...

Страница 9: ...TL F 12034 8 9...

Страница 10: ...TL F 12034 9 10...

Страница 11: ...TL F 12034 10 11...

Страница 12: ...ional Semiconductor National Semiconductor National Semiconductores National Semiconductor Corporation GmbH Japan Ltd Hong Kong Ltd Do Brazil Ltda Australia Pty Ltd 2900 Semiconductor Drive Livry Garg...

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