Fujitsu F2MC-16LX Hardware Manual page 455
16-bit microcontroller mb90330 series
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Also See for F2MC-16LX:
- Hardware manual (598 pages) ,
- Application note (13 pages) ,
- Operation manual (10 pages)
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Table 19.3-3 Description and Functions of Each Bit of A/D Conversion Channel Set Register (ADMR)
Bit name
bit15
ANS3, ANS2,
bit14
ANS1, ANS0:
bit13
A/D conversion
bit12
beginning channel
selection bits
bit11
ANE3, ANE2,
bit10
ANE1, ANE0:
bit9
A/D conversion
bit8
end channel
selection bits
Note:
Setting that the A/D conversion end channel is smaller than the A/D conversion start channel (ANS >
ANE) is disabled. Analog to digital conversion channel set register (ADMR) should be set by byte
access.
• This bit set the start channel of the A/D conversion and indicates the channel numbers
under A/D conversion during conversion operation.
• When the A/D conversion is started, it is begun from the channels written in these bits.
• Channel numbers under the conversion can be read during the A/D conversion. The
channel number converted immediately before can be read during the suspension in the
stop conversion mode.
• This bit sets the end channel of the A/D conversion.
• A/D conversion is performed up to the specified channel.
• When the same channels with ANS3 to ANS0 are set, only those channels are converted.
In addition, when the continuous conversion mode or the stop conversion mode is set and
the conversion is completed for the channels set by those bits, the start channel set by the
ANS3 to ANS0 is resumed.
Note: Do not set the A/D conversion mode selection bits (MD1 and MD0) and A/D
conversion end channel selection bits (ANE3, ANE2, ANE1 and ANE0) through
read-modify-write commands after the start channel is set in the A/D conversion start
channel selection bits (ANS3, ANS2, ANS1 and ANS0).
The ANS3, ANS2, ANS1 and ANS0 bits will read the last conversion channel until the
A/D conversion operation starts. Accordingly when the MD1 and MD0 bits and the
ANE3, ANE2, ANE1 and ANE0 bits are set through read-modify-write commands
after the start channel is set in the ANS3, ANS2, ANS1 and ANS0 bits, the values of
the ANE3, ANE2, ANE1 and ANE0 bits may be rewritten.
CHAPTER 19 8/10-BIT A/D CONVERTER
Functions
439
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