NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 553 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
MSB
LSB
MSB
word N-1
right channel
word N
left channel
word N+1
right channel
BCLK
WS
DI / DO
I2S Bus
MSB
LSB
MSB
word N-1
right channel
word N
lef channel
word N+1
right channel
BCLK
WS
DI / DO
MSB
–
Justified format
Figure 5.20-4 I
2
S MSB-Justified Format
The sampling rate, bit shift clock frequency could be set by the control register I2S_CON.
PCM Interface
5.20.5.2
The PCM interface signals are shown as the following figure.
I
2
S
Controller
(PCM Mode)
I2S_LRCK
I2S_BCLK
I2S_DO
I2S_DI
Audio
Codec
Figure 5.20-5 PCM Mode Signal Interface