Samsung S5PC110 Manual page 1799

1 Audio Subsystem .......................................................................................1-1
1.1 Overview of the Audio Subsystem ........................................................................................................... 1-1
1.2 Key Features of Audio Subsystem........................................................................................................... 1-1
1.3 Input/ Output Description ......................................................................................................................... 1-2
1.4 Block Diagram of Audio Subsystem......................................................................................................... 1-3
1.5 Functional Description ............................................................................................................................. 1-5
1.5.1 Reconfigurable Processor ................................................................................................................ 1-5
1.5.2 ASS CLK CON.................................................................................................................................. 1-5
1.5.3 Commbox ......................................................................................................................................... 1-5
1.5.4 I2S_V51 ............................................................................................................................................ 1-6
1.5.5 SRAM ............................................................................................................................................... 1-6
1.6 Register Description................................................................................................................................. 1-7
1.6.1 Register Map .................................................................................................................................... 1-7
1.6.2 Audio Subsystem CLK CON............................................................................................................. 1-9
1.6.3 Commbox ....................................................................................................................................... 1-11
2 IIS Multi Audio Interface ............................................................................2-1
2.1 Overview of IIS Multi Audio Interface....................................................................................................... 2-1
2.2 Key Features of IIS Multi Audio Interface ................................................................................................ 2-1
2.3 Block Diagram of IIS Multi Audio Interface .............................................................................................. 2-2
2.4 Functional Descriptions............................................................................................................................ 2-3
2.4.1 Master/Slave Mode........................................................................................................................... 2-3
2.5 Audio Serial Data Format......................................................................................................................... 2-8
2.5.1 IIS-bus Format .................................................................................................................................. 2-8
2.5.2 MSB (Left) Justified .......................................................................................................................... 2-8
2.5.3 LSB (Right) Justified ......................................................................................................................... 2-9
2.6 PCM BIT Length (BLC), RFS Divider and BFS Divider for Sampling Frequency (iISlrclk), SERIAL
bitCLK(iiSSclk), and ROOt Clock(RCLK)..................................................................................................... 2-10
2.6.1 PCM Word Length and BFS Divider............................................................................................... 2-10
2.6.2 BFS Divider and RFS Divider ......................................................................................................... 2-10
2.6.3 RFS Divider and ROOT CLock....................................................................................................... 2-11
2.7 Programming Guide............................................................................................................................... 2-12
2.7.1 Initialization ..................................................................................................................................... 2-12
2.7.2 Play Mode (TX mode) with DMA .................................................................................................... 2-12
2.7.3 Recording Mode (RX mode) with DMA .......................................................................................... 2-12
2.7.4 Example Code ................................................................................................................................ 2-13
2.8 IO Description ........................................................................................................................................ 2-19
2.9 Register Description............................................................................................................................... 2-20
2.9.1 Register Map .................................................................................................................................. 2-20
3 IIS-Bus Interface .........................................................................................3-1
3.1 Overview of IIS-Bus Interface .................................................................................................................. 3-1
3.2 Key Features of IIS-Bus Interface............................................................................................................ 3-1
3.3 Block Diagram of IIS-Bus Interface.......................................................................................................... 3-2
3.4 Functional Descriptions............................................................................................................................ 3-3
3.4.1 Master/Slave Mode........................................................................................................................... 3-3
3.4.2 DMA Transfer ................................................................................................................................... 3-4
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