TAS5518 datasheet(81/102 Pages) TI

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Serial Control Interface Register Definitions

SLES115 — August 2004

TAS5518

6.15 Input Mixer Registers (0x41 – 0x48, Channels 1 − 8)

Input mixers 1, 2, 3, 4, 5, 6, 7, and 8 are mapped into registers 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, and

0x48.

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 4 bits not used. For 8-gain coefficients, the total is 32 bytes.

Bold indicates the one channel that is passed through the mixer.

Table 6−16. Input Mixer Registers Format (0x41 – 0x48, Channels 1 − 8)

I2C

SUBADDRESS

TOTAL

BYTES

FIELDS

DESCRIPTION OF CONTENTS

DEFAULT STATE

A_to_ipmix[1]

SDIN1−Left (Ch 1) A to Input Mixer 1 coefficient (default = 1)

U (31:28), A_1 (27:24), A_1 (23:16), A_1 (15:8), A_1 (7:0)

0x00, 0x80, 0x00, 0x00

B_to_ipmix[1]

SDIN1−Right (Ch 2) B to Input Mixer 1 coefficient (default = 0)

U (31:28), B_1 (27:24), B_1 (23:16), B_1 (15:8), B_1 (7:0)

0x00, 0x00, 0x00, 0x00

C_to_ipmix[1]

SDIN2−Left (Ch 3) C to Input Mixer 1 coefficient (default = 0)

U (31:28), C_1 (27:24), C_1 (23:16), C_1 (15:8), C_1 (7:0)

0x00, 0x00, 0x00, 0x00

0x41

D_to_ipmix[1]

SDIN2−Right (Ch 4) D to Input Mixer 1 coefficient (default = 0)

U (31:28), D_1 (27:24), D_1 (23:16), D_1 (15:8), D_1 (7:0)

0x00, 0x00, 0x00, 0x00

0x41

E_to_ipmix[1]

SDIN3−Left (Ch 5) E to Input Mixer 1 coefficient (default = 0)

U (31:28), E_1 (27:24), E_1 (23:16), E_1 (15:8), E_1 (7:0)

0x00, 0x00, 0x00, 0x00

F_to_ipmix[1]

SDIN3−Right (Ch 6) F to Input Mixer 1 coefficient (default = 0)

U (31:28), F_1 (27:24), F_1 (23:16), F_1 (15:8), F_1 (7:0)

0x00, 0x00, 0x00, 0x00

G_to_ipmix[1]

SDIN4−Left (Ch 7) G to Input Mixer 1 coefficient (default = 0)

U (31:28), G_1 (27:24), G_1 (23:16), G_1 (15:8), G_1 (7:0)

0x00, 0x00, 0x00, 0x00

H_to_ipmix[1]

SDIN4−Right (Ch 8) H to Input Mixer 1 coefficient (default = 0)

U (31:28), H_1 (27:24), H_1 (23:16), H_1 (15:8), H_1 (7:0)

0x00, 0x00, 0x00, 0x00

A_to_ipmix[2]

SDIN1−Left (Ch 1) A to Input Mixer 2 coefficient (default = 0)

U (31:28), A_2 (27:24), A_2 (23:16), A_2 (15:8), A_2 (7:0)

0x00, 0x00, 0x00, 0x00

B_to_ipmix[2]

SDIN1−Right (Ch 2) B to Input Mixer 2 coefficient (default = 1)

U (31:28), B_2 (27:24), B_2 (23:16), B_2 (15:8), B_2 (7:0)

0x00, 0x80, 0x00, 0x00

C_to_ipmix[2]

SDIN2−Left (Ch 3) C to Input Mixer 2 coefficient (default = 0)

U (31:28), C_2(27:24), C_2(23:16), C_2(15:8), C_2(7:0)

0x00, 0x00, 0x00, 0x00

0x42

D_to_ipmix[2]

SDIN2−Right (Ch 4) D to Input Mixer 2 coefficient (default = 0)

U (31:28), D_2 (27:24), D_2 (23:16), D_2 (15:8), D_2 (7:0)

0x00, 0x00, 0x00, 0x00

0x42

E_to_ipmix[2]

SDIN3−Left (Ch 5) E to Input Mixer 2 coefficient (default = 0)

U (31:28), E_2 (27:24), E_2 (23:16), E_2 (15:8), E_2 (7:0)

0x00, 0x00, 0x00, 0x00

F_to_ipmix[2]

SDIN3−Right (Ch 6) F to Input Mixer 2 coefficient (default = 0)

U (31:28), F_2 (27:24), F_2 (23:16), F_2 (15:8), F_2 (7:0)

0x00, 0x00, 0x00, 0x00

G_to_ipmix[2]

SDIN4−Left (Ch 7) G to Input Mixer 2 coefficient (default = 0)

U (31:28), G_2 (27:24), G_2 (23:16), G_2 (15:8), G_2 (7:0)

0x00, 0x00, 0x00, 0x00

H_to_ipmix[2]

SDIN4−Right (Ch 8) H to Input Mixer 2 coefficient (default = 0)

U (31:28), H_2 (27:24), H_2 (23:16), H_2 (15:8), H_2 (7:0)

0x00, 0x00, 0x00, 0x00

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