TAS5518 datasheet(84/102 Pages) TI

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Serial Control Interface Register Definitions

SLES115 — August 2004

TAS5518

6.16 Bass Management Registers (0x49 – 0x50)

Registers 0x49 – 0x50 provide configuration control for bass mangement.

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 Management Registers Format (0x49 – 0x50)

SUBADDRESS

TOTAL

BYTES

NAME

DESCRIPTION OF CONTENTS

DEFAULT STATE

0x49

ipmix_1_to_ch8

Input Mixer 1 to Ch 8 Mixer coefficient (default = 0)

U (31:28), ipmix18 (27:24), ipmix18 (23:16), ipmix18 (15:8),

ipmix18 (7:0)

0x00, 0x00, 0x00, 0x00

0x4A

ipmix_2_to_ch8

Input Mixer 1 to Ch 8 Mixer coefficient (default = 0)

U (31:28), ipmix28 (27:24), ipmix28 (23:16), ipmix28 (15:8),

ipmix28 (7:0)

0x00, 0x00, 0x00, 0x00

0x4B

ipmix_7_to_ch12 Input Mixer 7 to Ch 1 and Ch 2 Mixer coefficient (default = 0)

U (31:28), ipmix72 (27:24), ipmix72 (23:16), ipmix72 (15:8),

ipmix72 (7:0)

0x00, 0x00, 0x00, 0x00

0x4C

Ch7_bp_bq2

Ch 7 Biquad-2 By-pass coefficient (default = 0)

U (31:28), ch7_bp_bq2 (27:24), ch7_bp_bq2 (23:16),

ch7_bp_bq2 (15:8), ch7_bp_bq2 (7:0)

0x00, 0x00, 0x00, 0x00

0x4D

Ch7_bq2

Ch 7 Biquad-2 Inline coefficient (default = 1)

U (31:28), ch6_bq2 (27:24), ch6_bq2 (23:16), ch6_bq2 (15:8),

ch6_bq2 (7:0)

0x00, 0x80, 0x00, 0x00

0x4E

ipmix_8_to_ch12 Ch 8 Biquad-2 Output to Ch1 Mixer and Ch2 Mixer coefficient

(default = 0)

U (31:28), ipmix8_12 (27:24), ipmix8_12 (23:16), ipmix8_12

(15:8), ipmix8_12 (7:0)

0x00, 0x00, 0x00, 0x00

0x4F

Ch8_bp_bq2

Ch 8 Biquad-2 By-pass coefficient (default = 0)

0U (31:28), ch8_bp_bq2 (27:24), ch8_bp_bq2 (23:16),

ch8_bp_bq2 (15:8), ch8_bp_bq2 (7:0)

0x00, 0x00, 0x00, 0x00

0x50

Ch8_bq2

Ch 8 Biquad-2 Inline coefficient (default = 1)

U (31:28), ch7_bq2 (27:24), ch7_bq2 (23:16), ch7_bq2 (15:8),

ch7_bq2 (7:0)

0x00, 0x80, 0x00, 0x00

6.17 Biquad Filters Register (0x51 – 0x88)

Table 6−18. Biquad Filters Registers Format (0x51 – 0x88)

I2C

SUBADDRESS

TOTAL

BYTES

DESCRIPTION OF CONTENTS

DEFAULT

STATE

0x51 – 0x57

20/Reg.

Ch1_bq[1] – [7]

Ch 1 Biquads 1 – 7. See Table 6−19 for bit definition.

See Table 6−19

0x58 – 0x5E

20/Reg.

Ch2_bq[1] – [7]

Ch 2 Biquads 1 – 7. See Table 6−19 for bit definition.

See Table 6−19

0x5F – 0x65

20/Reg.

Ch3_bq[1] – [7]

Ch 3 Biquads 1 – 7. See Table 6−19 for bit definition.

See Table 6−19

0x66 – 0x6C

20/Reg.

Ch4_bq[1] − [7]

Ch 4 Biquads 1 – 7. See Table 6−19 for bit definition.

See Table 6−19

0x6D – 0x73

20/Reg.

Ch5_bq[1] − [7]

Ch 5 Biquads 1 – 7. See Table 6−19 for bit definition.

See Table 6−19

0x74 – 0x7A

20/Reg.

Ch6_bq[1] − [7]

Ch 6 Biquads 1 – 7. See Table 6−19 for bit definition.

See Table 6−19

0x7B – 0x81

20/Reg.

Ch7_bq[1] − [7]

Ch 7 Biquads 1 – 7. See Table 6−19 for bit definition.

See Table 6−19

0x82 – 0x88

20/Reg.

Ch8_bq[1] − [7]

Ch 8 Biquads 1 – 7. See Table 6−19 for bit definition.

See Table 6−19

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