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STA328

Table 17. Channel Volume as a Function of CxV (7..0)

7.9 AUTOMODE REGISTERS

7.9.1

Register – AutoModes EQ, Volume, GC (Address 0Bh)

Table 18. AutoMode EQ

By setting AMEQ to any setting other than 00 enables AutoMode EQ. When set, biquads 1-4 are not user

programmable. Any coefficient settings for these biquads will be ignored. Also when AutoMode EQ is used

the pre-scale value for channels 1-2 becomes hard-set to –18dB.

Table 19. AutoMode Volume

CxV (7..0)

Volume

00000000 (00h)

+48dB

00000001 (01h)

+47.5dB

00000010 (02h)

+47dB

……

01100001 (5Fh)

+0.5dB

01100000 (60h)

0dB

01011111 (61h)

-0.5dB

……

11111110 (FEh)

-79.5 dB

11111111 (FFh)

Hard Channel Mute

D7

D6

D5

D4

D3

D2

D1

D0

AMPS

AMGC1

AMGC0

AMV1

AMV0

AMEQ1

AMEQ0

10

0

0

0

0

0

AMEQ (1,0)

Mode (Biquad 1-4)

00

User Programmable

01

Preset EQ – PEQ bits

10

Auto Volume Controlled Loudness Curve

11

Not used

AMV (1,0)

Mode (MVOL)

00

MVOL 0.5dB 256 Steps (Standard)

01

MVOL Auto Curve 30 Steps

10

MVOL Auto Curve 40 Steps

11

MVOL Auto Curve 50 Steps