TAS5028 datasheet(71/84 Pages) TI

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Serial Control Interface Register Definitions

SLES112 — June 2004

TAS5028

6.16 Bass and Treble Bypass Register (0x89 – 0x90, Channels 1 - 8)

Channels 1, 2, 3, 4, 5, 6, 7, and 8 are mapped into registers 0x89, 0x8A, 0x8B, 0x8C,0x8D, 0x8E, 0x8F, and

0x90. Eight bytes are written for each channel. Each gain coefficient is in 28-bit (5.23) format so 0x800000

is a gain of 1. Each gain coefficient is written as a 32-bit word with the upper four bits not used.

Table 6 - 17. Bass and Treble Bypass Register Format (0x89 - 0x90)

TOTAL BYTES

CONTENTS

INITIALIZATION VALUE

Channel bass and

treble bypass

U 31:28), Bypass (27:24), Bypass (23:16), Bypass (15:8), Bypass (7:0)

0x00, 0x80, 0x00, 0x00

Channel bass and

treble inline

U (31:28), Inline (27:24), Inline (23:16), Inline (15:8), Inline (7:0)

0x00, 0x00, 0x00, 0x00

6.17 8x2 Output Mixer Registers (0xAA – 0xAF)

Output mixers for channels 1–6 map to registers 0xAA – 0xAF.

Total data per register is 8 bytes.

Table 6 - 18. Output Mixer Control Register Format (Upper 4 Bytes)

D31

D30

D29

D28

D27

D26

D25

D24

FUNCTION

Select channel 1 to output mixer

Select channel 2 to output mixer

Select channel 3 to output mixer

Select channel 4 to output mixer

Select channel 5 to output mixer

Select channel 6 to output mixer

Select channel 7 to output mixer

Select channel 8 to output mixer

G27

G26

G25

G24

Selected channel gain (upper 4 bits)

D23

D22

D21

D20

D19

D18

D17

D16

FUNCTION

G23

G22

G21

G20

G19

G18

G17

G16

Selected channel gain (continued)

D15

D14

D13

D12

D11

D10

FUNCTION

G15

G14

G13

G12

G11

G10

Selected channel gain (continued)

FUNCTION

Selected channel gain (lower 8 bits)

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