Samsung S5PC110 Manual page 1856

S5PC110_UM
3.4.3.3 LSB (Right) Justified
LSB-Justified (Right-Justified) format is opposite to the MSB-justified format. In other word, the transferring serial
data is aligned with ending point of I2SLRCLK transition.
shows the audio serial format of IIS, MSB-justified, and LSB-justified. Note that in this figure, the word
Figure 3-3
length is 16-bit and I2SLRCLK makes transition every 24 cycle of I2SSCLK (BFS is 48 fs, where fs is sampling
frequency; I2SLRCLK frequency).
LRCLK
SCLK
SD
LRCLK
SCLK
MSB
SD
(1st)
LRCLK
SCLK
SD
LEFT
MSB 2nd
N-1th
(1st) Bit
Bit
LEFT
2nd N-1th
Bit Bit
MSB - Justified
LEFT
1st N-2th
Bit Bit
LSB - Justified
Figure 3-3
MSB
(1st)
I 2 S Format ( N = 8 or 16 )
MSB 2nd
(1st) Bit
(Left - Justified ) Format ( N = 8 or 16 )
LSB
(N-1th)
( Right - Justified ) Format
IIS Audio Serial Data Formats
3 IIS-BUS INTERFACE
RIGHT
2nd
N-1th
Bit
Bit
RIGHT
N-1th
Bit
RIGH
T
1st N-2th LSB
Bit Bit (N-1th)
( N = 8 or 16 )
3-5