Model VM32PAFF
32 Channel VME Module
Programmable Amplifier
Programming
With Fixed Frequency Filter
18
1784 Chessie Lane., Ottawa, IL 61350
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Tel: 800/252-7074, 815/434-7800
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FAX:815/434-8176
e-mail: [email protected]
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Web Address: http://www.freqdev.com
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Reading the Data Register while BUSY is set will yield erroneous data but will not impair board
operation or contaminate any channel settings. This event is not flagged, so it is important to use
the BUSY interlock before reading the Data Register.
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It is not possible to write '0' to the BUSY bit from the VMEbus, so this is not an error. Attempting to
write '1' to the BUSY bit when it is already set is also not an error condition and therefore is not
flagged.
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Attempting to set a channel's gain beyond the normal gain range will cause the channel to
automatically set to its maximum gain. If the channel's gain setting is subsequently read back, the
proper code for maximum gain will be returned.
