Low voltage differential dual receiver
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United States of America Patent
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-
Nov 12, 2002
Grant Date -
Feb 14, 2002
app pub date -
Sep 26, 2001
filing date -
Apr 18, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A low-voltage differential dual receiver for a SCSI bus uses a symmetrical driver by doing without a termination bias voltage. The data phase and protocol phase of SCSI communication are separated by using two receivers and optimizing each receiver for its particular function. A high-speed receiver is used when transmitting data at high-speeds, and a lower performance, low-speed receiver is used for other SCSI phases. A built-in offset allows the low-speed receiver to operate correctly during bus arbitration. The built-in offset in the low-speed receiver takes the place of the termination bias voltage in a traditional SCSI bus and is implemented in a variety of ways.
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