SM5879AV
Selection and Setting of Functions
SM5879AV offers a variety of functions. Fundamen-
tally, there are two methods available for selecting
and setting these functions.
One method is using an external input pin; this is
called parallel setting. The other method is by using
the microcontroller interface, which is called micro-
controller setting.
Table 1. Selection and Setting of Functions
Function Setting Methods
Function
Parallel setting
Related external pin name
(When P/M is HIGH)
BB1, BB2
None
DEEM
MUTE
None
None
Microcontroller setting
Related flag
(When P/M is LOW)
FBB1, FBB2
Output to BBON
FDEM
None
(Enabled by attenuator)
7 bits (A6 - A0)
MONO, CSEL
Notes
Microcontroller interface refers here to serial data
transfer from the microcontroller using the three pins
MDT, MCK, and MLEN.
These two methods of setting and selection are set by
the P/M pin.
When P/M is HIGH, parallel setting is used.
When P/M is LOW, microcontroller setting is used.
Bass boost
Bass boost detection output
Deemphasis filter
Soft mute
Attenuator setting
Monaural setting
Bass boost
Bass boost detection output
Deemphasis filter
Soft mute
Attenuation
Stereo/mono output setting
NIPPON PRECISION CIRCUITS—13
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