DA7217 datasheet(86/157 Pages) RENESAS

86 / 157 page

Ultra-Low Power Stereo Codec

R32DS0005EE0370 Revision 3.7

Aug 9, 2024

CFR0011-120-00

Page 86

Table 100: DAI_CTRL (Page 0: 0x0000008C)

Bit

Mode

Symbol

Description

Reset

R/W

dai_en

DAI control

0 = DAI disabled. No data transfer.

1 = DAI enabled. Input and output data channels can be

enabled using dai_ch_num.

0x0

6:4

R/W

dai_ch_num

DAI Channel control

000 = No channels are enabled

001 = Channel 1L enabled

010 = Channel 1L and 1R enabled

011 = Channel 1L, 1R and 2L enabled

100 = Channel 1L, 1R, 2L and 2R enabled

101 to 111 = Reserved

0x2

3:2

R/W

dai_word_length

DAI data word length

00 = 16 bits per channel

01 = 20 bits per channel

10 = 24 bits per channel

11 = 32 bits per channel

0x2

1:0

R/W

dai_format

DAI data format

00 = I2S mode

01 = left justified mode

10 = right justified mode

11 = DSP mode

0x0

Table 101: DAI_TDM_CTRL (Page 0: 0x0000008D)

Bit

Mode

Symbol

Description

Reset

R/W

dai_tdm_mode_en

DAI TDM mode control.

In TDM mode the output is high impedence when not

actively driving data. This allows other devices to share

the DATOUT line.

0 = DAI in normal mode

1 = DAI in TDM mode

0x0

R/W

dai_oe

DAI output control

0 = DAI DATOUT pin is high impedence

1 = DAI DATOUT pin is driven when required

0x1

3:0

R/W

dai_tdm_ch_en

DAI TDM channel control

bit 0: Channel 1L

bit 1: Channel 1R

bit 2: Channel 2L

bit 3: Channel 2R

On each bit

0 = Channel is disabled

1 = Channel is enabled

0x0

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