CS43L36 datasheet(77/89 Pages) CIRRUS

77 / 89 page

DS1081F3

CS43L36

7.12 AudioPort Interface Registers

7.11.2 Channel B Input Volume

Address 0x2303

R/W

76543210

—

CHB_VOL

Default

001111

Bits

Name

Description

7:6

—

Reserved

5:0

CHB_

VOL

Input attenuation. Sets the attenuation level to be applied to various stereo digital inputs. See Section 4.1 for details. Each

input can be muted or attenuated from –62 to 0 dB in 1-dB steps.

00 0000 0 dB

00 0001 –1.0 dB …

11 1110 –62.0 dB

11 1111 (Default) Mute.

7.12.1 Serial Port Receive Channel Select

Address 0x2501

R/W

765432

—

SP_RX_CHB_SEL

SP_RX_CHA_SEL

Default

000001

Bits

Name

Description

7:4

—

Reserved

3:2

SP_RX_

CHB_SEL

SP RX Channel B select for DAI0. Selects right input channel. See Section 5 for programming examples.

00 Channel 0

01 (Default) Channel 1

10 Channel 2

11 Channel 3

1:0

SP_RX_

CHA_SEL

SP RX Channel A select for DAI0. Selects right input channel.

00 (Default) Channel 0

01 Channel 1

10 Channel 2

11 Channel 3

7.12.2 Serial Port Receive Isochronous Control

Address 0x2502

R/W

—

SP_RX_RSYNC

SP_RX_NSB_POS

SP_RX_NFS_NSBB

SP_RX_ISOC_MODE

Default

000

Bits

Name

Description

7—

Reserved

6SP_RX_

RSYNC

Serial port receive synchronization.

0 (Default) Normal state

1 Recenter the FIFO. No read and writes when asserted

5:3

SP_RX_

NSB_

POS

Serial-port receive null-sample bit position. Selects the position of the null byte in the resultant 16-, 24-, or 32-bit sample.

For all samples, if SP_RX_ISOC_MODE ≠ 00, SP_RX_NFS_NSBB = 0, the following applies:

• For a 16-bit sample (8-bit audio + null byte), [23:16] is the null byte.

• For a 24-bit sample (16-bit audio + null byte), [15:8] is the null byte.

• For a 32-bit sample (24-bit audio + null byte), [7:0] is the null byte.

Note: NSB Mode does not support 32-bit audio samples.

The ASP_RXn_CHn_RES fields in Section 7.14 set the output resolution of the ASP receive channel samples.

Clearing SP_RX_NSB_POS indicates that Bit 0 must be zero for the sample to be classified as a null.

000 (Default) 0 … 111 7

2SP_RX_

NFS_

NSBB

Serial-port receive NSB/NFS Mode select.

0 NSB Mode valid only if SP_RX_ISOC_MODE ≠ 00.

1 (Default) NFS Mode

1:0

SP_RX_

ISOC_

MODE

Serial port receive isochronous mode. Selecting an isochronous mode allows for null removal. The ASP Rx rate bits (SP_RX_

FS, see p. 78) are used only to help the device determine when to insert nulls.

00 (Default) Native mode

01 48k isochronous stream

10 96k isochronous stream

11 192k isochronous stream

CS43L36 датащи(PDF) 77 Page - Cirrus Logic

CS43L36 датащи(HTML) 77 Page - Cirrus Logic

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89

датащи скачать

ссылки URL