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ICS9148-93 Datasheet(PDF) 4 Page - Integrated Circuit Systems

Part # ICS9148-93
Description  Frequency Generator & Integrated Buffers for PENTIUM/ProTM
PDF  14 Pages
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Manufacturer  ICST [Integrated Circuit Systems]
Direct Link  http://www.icst.com
Logo ICST - Integrated Circuit Systems

ICS9148-93 Datasheet(HTML) 4 Page - Integrated Circuit Systems

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ICS9148- 93
Advance Information
Byte0: Functionality and Frequency Select Register
(default = 0)
Serial Configuration Command Bitmap
General I
2C serial interface information
The information in this section assumes familiarity with I2C programming. For more information, contact ICS for an I2C
programming application note.
How to Write:
• Send the address D2(H) .
• Send two additional dummy bytes, a command code
and byte count.
• Send the desired number of data bytes.
See the diagram below:
Note that the acknowledge bit is sent by the clock chip, and pulls the data line low. There is no minimum of data bytes that must
be sent.
How to Read:
• Send the address D3(H).
• Send the byte count in binary coded decimal
• Read back the desired number of data bytes
See the diagram below:
The following specifications should be observed:
1.
Operating voltage for I2C pins is 3.3V
2.
Maximum data transfer rate (SCLK) is 100K bits/sec.
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I2C is a trademark of Philips Corporation
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