
NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 552 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
5.20.5 Functional Description
I
2
S interface
5.20.5.1
The I
2
S interface signals are shown as the following figure.
I
2
S
Controller
(Master)
I2S_LRCK
I2S_BCLK
I2S_DO
I2S_DI
I2S_MCLK
Audio
Codec
(Slave)
Figure 5.20-2 I
2
S Interface Signal of Master Mode
I
2
S
Controller
(Slave)
I2S_LRCK
I2S_BCLK
I2S_DO
I2S_DI
I2S_MCLK
Audio
Codec
(Master)
Figure 5.20-3 I
2
S Interface Signal of Slave Mode
The I
2
S and MSB-justified format are supported; the timing diagram is shown as following figure.