BU7831KN_10 Datasheet, PDF (10/17 Pages) Rohm – Voice/Audio Mixer & Selector IC

BU7831KN
Using in the BU7831KN dedicated line is recommended with a CPU I/F.
Control it by a sequence like the bottom when you don't do special control.
NCS
CPU
SCLK
SDATA
BU7831KN
NCS_OTH
Other
IC
CPU I/F input signals waveforms
NCS
NCS_OTH
Fig.28
SCLK
SDATA
BU7831KN
Control
Other IC
Control
Fig.29
Please NCS of BU7831KN is set “H” when you control the other IC.
When NCS is "H", the register of BU7831KN can't write it.
note ) NCS_OTH is based on the specifications of other IC's.
BU7831KN
Control
Technical Note
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10/16
2010.09 - Rev.A