Mały cytat co może sprzęt z "RK2918 Datasheet Rev 1.0"
1.1.11 Audio Interface
I2S/PCM with 8ch
Compatible audio resolution from 16bits to 32bits
Sample rate up to 192KHz
Provides master and slave work mode, software configurable
Embedded 4 TX FIFO and 1 RX FIFO with 32x32bits size
Support I2S normal , left-justified , right-justified three data formats in I2S mode
Support early , late1 , late2 , late3 four data formats in PCM mode
For I2S mode only, support software-configurable channel number(TX : 2/4/6/8; RX:2)
For PCM mode only, support software-configurable channel number(TX : 2/4/6/8; RX:2)
In master TX mode, Support I2S and PCM work simultaneously in condition of same audio data and same sample rate , and only use two channels separately for I2S and PCM
Support SCLK and LRCK polarity software-configurable
SCLK can be even-divided by 2 to 64 from i2s main clock
I2S/PCM with 2ch
Compatible audio data width from 16bits to 32bits
Sample rate up to 192KHz
Provides master and slave work mode, software configurable
Embedded 1 TX FIFO and 1 RX FIFO with 32x32bits size
Support I2S normal mode, I2S left-justified mode , I2S right-justified mode
Support PCM early mode , late1 mode, late2 mode , late3 mode
I2S and PCM cannot be used at the same time
Support SCLK and LRCK polarity software-configurable
SCLK can be even-divided by 2 to 64 from i2s main clock
SPDIF
Embedded one 32x32bits buffer
Provides audio data with biphase encode
Support stereo voice replay with 2 channels
Support software configurable sample rates (48KHz, 44.1KHz, 32KHz)
Support audio data width 16bits/20bits/24bits
Frame frequency is 128x audio data sample rates