SM5879AV datasheet(13/20 Pages) NPC

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SM5879AV

NIPPON PRECISION CIRCUITS—13

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.

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.

Table 1. Selection and Setting of Functions

Function

Function Setting Methods

Notes

Parallel setting

Related external pin name

(When P/M is HIGH)

Microcontroller setting

Related ﬂag

(When P/M is LOW)

Bass boost

BB1, BB2

FBB1, FBB2

Bass boost

Bass boost detection output

None

Output to BBON

Bass boost detection output

Deemphasis ﬁlter

DEEM

FDEM

Deemphasis ﬁlter

Soft mute

MUTE

None

(Enabled by attenuator)

Soft mute

Attenuator setting

None

7 bits (A6 - A0)

Attenuation

Monaural setting

None

MONO, CSEL

Stereo/mono output setting

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