CS47L15 datasheet(49/279 Pages) CIRRUS

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DS1137F2

CS47L15

4.3 Digital Core

Table 4-12. EQ Enable and Gain Control

Bit

Label

Default

Description

R3585 (0x0E01)

FX_Ctrl2

15:4 FX_STS[11:0]

0x00 LHPF, DRC, EQ Enable Status. Indicates the status of each of the respective

signal-processing functions. Each bit is coded as follows:

0 = Disabled

1 = Enabled

[11] = EQ4

[10] = EQ3

[9] = EQ2

[8] = EQ1

[7] = DRC2 (Right)

[6] = DRC2 (Left)

[5] = DRC1 (Right)

[4] = DRC1 (Left)

[3] = LHPF4

[2] = LHPF3

[1] = LHPF2

[0] = LHPF1

R3600 (0x0E10)

EQ1_1

15:11 EQ1_B1_GAIN[4:0]

0x0C EQ1 Band 1 Gain 1 (–12 dB to +12 dB in 1-dB steps)

10:6 EQ1_B2_GAIN[4:0]

0x0C EQ1 Band 2 Gain 1 (–12 dB to +12 dB in 1-dB steps)

5:1

EQ1_B3_GAIN[4:0]

0x0C EQ1 Band 3 Gain 1 (–12 dB to +12 dB in 1-dB steps)

EQ1_ENA

EQ1 Enable

0 = Disabled

1 = Enabled

R3601 (0x0E11)

EQ1_2

15:11 EQ1_B4_GAIN[4:0]

0x0C EQ1 Band 4 Gain 1 (–12 dB to +12 dB in 1-dB steps)

10:6 EQ1_B5_GAIN[4:0]

0x0C EQ1 Band 5 Gain 1 (–12 dB to +12 dB in 1-dB steps)

EQ1_B1_MODE

EQ1 Band 1 Mode

0 = Shelving filter

1 = Peak filter

R3602 (0x0E12) to

R3620 (0x0E24)

15:0 EQ1_B1_*

EQ1_B2_*

EQ1_B3_*

EQ1_B4_*

EQ1_B5_*

—

EQ1 Frequency Coefficients. Refer to WISCE evaluation board control software for

the derivation of these field values.

R3622 (0x0E26)

EQ2_1

15:11 EQ2_B1_GAIN[4:0]

0x0C EQ2 Band 1 Gain 1

–12 dB to +12 dB in 1-dB steps

10:6 EQ2_B2_GAIN[4:0]

0x0C EQ2 Band 2 Gain 1

–12 dB to +12 dB in 1-dB steps

5:1

EQ2_B3_GAIN[4:0]

0x0C EQ2 Band 3 Gain 1

–12 dB to +12 dB in 1-dB steps

EQ2_ENA

EQ2 Enable

0 = Disabled

1 = Enabled

R3623 (0x0E27)

EQ2_2

15:11 EQ2_B4_GAIN[4:0]

0x0C EQ2 Band 4 Gain 1 (–12 dB to +12 dB in 1-dB steps)

10:6 EQ2_B5_GAIN[4:0]

0x0C EQ2 Band 5 Gain 1 (–12 dB to +12 dB in 1-dB steps)

EQ2_B1_MODE

EQ2 Band 1 Mode

0 = Shelving filter

1 = Peak filter

R3624 (0x0E28) to

R3642 (0x0E3A)

15:0 EQ2_B1_*

EQ2_B2_*

EQ2_B3_*

EQ2_B4_*

EQ2_B5_*

—

EQ2 Frequency Coefficients. Refer to WISCE evaluation board control software for

the derivation of these field values.

R3644 (0x0E3C)

EQ3_1

15:11 EQ3_B1_GAIN[4:0]

0x0C EQ3 Band 1 Gain 1 (–12 dB to +12 dB in 1-dB steps)

10:6 EQ3_B2_GAIN[4:0]

0x0C EQ3 Band 2 Gain 1 (–12 dB to +12 dB in 1-dB steps)

5:1

EQ3_B3_GAIN[4:0]

0x0C EQ3 Band 3 Gain 1 (–12 dB to +12 dB in 1-dB steps)

EQ3_ENA

EQ3 Enable

0 = Disabled

1 = Enabled

R3645 (0x0E3D)

EQ3_2

15:11 EQ3_B4_GAIN[4:0]

0x0C EQ3 Band 4 Gain1 (–12 dB to +12 dB in 1-dB steps)

10:6 EQ3_B5_GAIN[4:0]

0x0C EQ3 Band 5 Gain 1 (–12 dB to +12 dB in 1-dB steps)

EQ3_B1_MODE

EQ3 Band 1 Mode

0 = Shelving filter

1 = Peak filter

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