Figure 6.17-19 Fifo Contents For Various 6-Channel Audio Modes (Part-1) - Nuvoton ISD94124BYI Technical Reference Manual

In 6-channel TDM PCM data format, the bit-width of audio data in a channel block can be 16, 24,
or 32 bits. The memory arrangements of audio data for various settings are shown Figure 6.17-19.
In 16-bit audio data transmission, ORDER (I2S_CTL0[7]) can be used to swap the audio data of
even and odd channels which are stored in transmitting and receiving FIFO. In 24-bit audio data
transmission, ORDER (I2S_CTL0[7]) can be also used to select the left-alignment or right-
alignment formula of audio data which is stored in 32-bit FIFO entries.
The FIFO content of 8-channel TDM PCM data format is similar to 6-channel and it can be
analogized easily.
Mono 16-bit data mode
15
Stereo 16-bit data mode, ORDER (I2S_CTL0[7]) = 0
15
15
15
Stereo 16-bit data mode, ORDER (I2S_CTL0[7]) = 1
15
15
15
Mono 24-bit data mode, ORDER (I2S_CTL0[7]) = 0
Redundant bits
Mono 24-bit data mode, ORDER (I2S_CTL0[7]) = 1
23

Figure 6.17-19 FIFO Contents for Various 6-channel Audio Modes (Part-1)

Sep 9, 2019
ISD94100 Series Technical Reference Manual
N+1
0 15
CH0
0 15
CH2
0 15
CH4
0 15
CH1
0 15
CH3
0 15
CH5
0 15
23
N
Page 812 of 928
N
CH1
CH3
CH5
CH0
CH2
CH4
N
Redundant bits
0
0
0
0
0
0
0
0
0
Rev1.09