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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM79C988 датащи(PDF) 11 Page - Advanced Micro Devices |
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AM79C988 датащи(HTML) 11 Page - Advanced Micro Devices |
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11 / 25 page  Am79C988A 11 PRELIMINARY CMOS/PAUI Mode Selection This command sets the QuIET interface drivers (PDO, PDI, PCI) to be driven at normal PAUI signal levels or CMOS voltage levels. The default is PAUI levels. Refer to the DC Characteristics table for voltage levels. K 0 CMOS Levels 1 PAUI Levels Reset Function The QuIET device enters the reset state when the reset pin (RST) is held LOW. All ports, status registers, and command registers are put into their default state.When powering up the device, the RST pin should be held LOW for 150 microseconds ( µs).At other times, the RST pin should be held LOW for a minimum of 4 µs. The default conditions are detailed below. Command and Status Default Conditions Command Default Extended Distance Disabled Link Test Enabled Link Pulse Transmit Enabled Correct Polarity Disabled Loopback Test Disabled Transceiver Mode Selection Normal CMOS/PAUI Mode PAUI Mode Status Default Device QuIET Link Fail Polarity Correct Jabber No Error |
Аналогичный номер детали - AM79C988 |
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Аналогичное описание - AM79C988 |
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