S5PC100 USER’S MANUAL (REV1.0)
I2S CONTROLLER(2CH)
10.3-7
5 PROGRAMMING GUIDE
The I2S bus interface is accessed either by the processor using programmed I/O instructions or by the DMA
controller.
5.1 INITIALIZATION
1. Before you use I2S bus interface, you must configure GPIOs to I2S mode and check signal's direction. The
I2SLRCLK, I2SSCLK and I2SCDCLK are inout-type. The each of I2SSDI and I2SSDO is input and output.
2. Select clock source. The S5PC100 has three clock sources namely PCLK, EPLL and external codec. For
more details refer to Figure 10.3-2.
5.2 PLAY MODE (TX MODE) WITH DMA
1. TXFIFO is flushed before operation. If you do not distinguish Master/ Slave mode from TX/RX mode, you
must study Master/ Slave mode and TX/RX mode. For more information refer to section Master/Slave.
2. To configure I2SMOD register and I2SPSR (I2S pre-scaler register) properly.
3. To operate system in stability, the internal TXFIFO should be almost full before transmission. First of all, DMA
starts because of that reason.
4. Basically, I2S bus does not support the interrupt. Therefore, check state by polling through accessing SFR.
5. If TXFIFO is full, now then you make I2SACTIVE be asserted.
5.3 RECORDING MODE (RX MODE) WITH DMA
1. RXFIFO is flushed before operation. If you do not distinguish between Master/ Slave mode and TX/RX mode,
you must study Master/Slave mode and TX/RX mode. For more information refer to “Section Master/Slave
chapter.
2. To configure I2SMOD register and I2SPSR (I2S pre-scaler register) properly.
3. To operate system in stability, the internal RXFIFO should have minimum one data before DMA operation.
Because of that reason, you make I2SACTIVE be asserted.
4. Check RXFIFO state by polling through accessing SFR.
5. If RXFIFO is not empty, start RXDMACTIVE.
6 EXAMPLE CODE
TX CHANNEL
The I2S TX channel provides a single stereo compliant output. The transmit channel operates in master or
slave mode. Data is transferred between the processor and the I2S controller via an APB access or a DMA
access.
The processor must write words in multiples of two (i.e. for left and right audio sample).The words are serially
shifted out timed with respect to the audio bitclk, BCLK and word select clock, LRCLK.
TX Channel has 16X32-bit wide FIFO where the processor or DMA writes upto 16 left/right data samples after
enabling the channel for transmission.
An Example sequence is as follows.
Ensure the PCLK and CODCLKI are coming correctly to the I2S controller and FLUSH the TX FIFO using the
TFLUSH bit in the Please ensure that I2S Controller is configured in one of the following modes.
•
TX only mode
Содержание S5PC100
Страница 1: ...USER S MANUAL S5PC100 June 2009 REV 1 01 Copyright 2009 Samsung Electronics Inc All Rights Reserved ...
Страница 13: ...PRODUCT OVERVIEW S5PC100 USER S MANUAL REV1 0 1 1 10 16 level alpha blending ITU BT601 656 format output ...
Страница 21: ...MEMORY MAP S5PC100 USER S MANUAL REV1 0 1 2 2 ...
Страница 33: ...BALL MAP SIZE POP S5PC100 USER S MANUAL REV1 0 1 1 8 VSS_HPLL AA12 VSSQ_UOTG AA19 VSS_UOTG AF21 VSS_ADC Y24 ...
Страница 34: ...S5PC100 USER S MANUAL REV1 0 BALL MAP SIZE POP 1 1 9 1 4 MCP CONNECTION ...
Страница 49: ...IROM CODE S5PC100 USER S MANUAL REV1 0 2 6 4 12 Mhz 300 0 Mhz 100 0 Mhz 79 5 Mhz 20 6 Mhz ...
Страница 159: ...S5PC100 USER S MANUAL REV1 0 CLOCK CONTROLLER 2 3 9 Figure 2 3 3 S5PC100 Clock Generation Circuit1 ...
Страница 174: ...CLOCK CONTROLLER S5PC100 USER S MANUAL REV1 0 2 3 24 Rs 0ohm Rf 1Mohm CL 10 35pF ...
Страница 322: ...CORESIGHT S5PC100 USER S MANUAL REV1 0 3 2 4 Figure 3 2 2 S5PC100 Coresight Structure ...
Страница 328: ...CORESIGHT S5PC100 USER S MANUAL REV1 0 3 2 10 Figure 3 2 6 Structure of the Coresight DAP Components ...
Страница 330: ...CORESIGHT S5PC100 USER S MANUAL REV1 0 3 2 12 Figure 3 2 7 ETB Block Diagram ...
Страница 345: ...S5PC100 USER S MANUAL REV1 0 ASYNC BRIDGE 3 4 3 Figure 3 4 2 Asynchronous Bridge Components ...
Страница 359: ...S5PC100 USER S MANUAL REV1 0 VECTORED INTERRUPT CONTROLLER 4 1 3 Figure 4 1 2 VIC Daisy Chain ...
Страница 524: ...S5PC100 USER S MANUAL REV1 0 CF CONTROLLER 5 5 29 48 DO9 Data 9 CF_D 9 49 D10 Data 10 CF_D 10 50 GND Ground ...
Страница 545: ...EXTERNAL BUS INTERFACE S5PC100 USER S MANUAL REV1 0 5 6 2 3 BLOCK DIAGRAM Figure 5 6 1 Memory Interface Through EBI ...
Страница 651: ...S5PC100 USER S MANUAL REV1 0 UART 8 1 27 Figure 8 1 10 UINTSP UINTP and UINTM block diagram ...
Страница 652: ...UART S5PC100 USER S MANUAL REV1 0 8 1 28 NOTES ...
Страница 743: ...S5PC100 USER S MANUAL REV1 0 MIPI HSI INTERFACE CONTROLLER 8 6 13 ...
Страница 756: ...MIPI HSI INTERFACE CONTROLLER S5PC100 USER S MANUAL REV1 0 8 6 26 NOTES ...
Страница 800: ...MIPI CSIS S5PC100 USER S MANUAL REV1 0 8 8 10 NOTES ...
Страница 816: ...USB HOST CONTROLLER S5PC100 USER S MANUAL REV1 0 8 9 16 ...
Страница 926: ...MODEM INTERFACE S5PC100 USER S MANUAL REV1 0 8 11 4 4 ADDRESS MAPPING Figure 8 11 2 MODEM I F Address Mapping ...
Страница 935: ...S5PC100 USER S MANUAL REV1 0 MODEM INTERFACE 8 11 13 NOTES ...
Страница 1019: ...S5PC100 USER S MANUAL REV1 0 DISPLAY CONTROLLER 9 1 5 Figure 9 1 2 Block Diagram of the Data Flow ...
Страница 1110: ...IMAGE ROTATOR S5PC100 USER S MANUAL REV1 0 9 2 2 3 1 ORIGINAL IMAGE 3 2 FLIP VERTICAL 3 3 FLIP HORIZONTAL ...
Страница 1111: ...S5PC100 USER S MANUAL REV1 0 IMAGE ROTATOR 9 2 3 3 4 180 DEGREE ROTATION ...
Страница 1112: ...IMAGE ROTATOR S5PC100 USER S MANUAL REV1 0 9 2 4 3 5 90 AND 270 DEGREE ROTATION ...
Страница 1118: ...S5PC100 USER S MANUAL REV1 0 CAMERA INTERFACE 9 3 3 Figure 9 3 2 Camera Interface Overview ...
Страница 1181: ...JPEG S5PC100 USER S MANUAL REV1 0 9 4 6 Figure 9 4 5 YCbCr4 2 2 Color Format ...
Страница 1199: ...JPEG S5PC100 USER S MANUAL REV1 0 9 4 24 NOTES ...
Страница 1245: ...3D ACCELERATOR S5PC100 USER S MANUAL REV1 0 9 6 18 ...
Страница 1310: ...S5PC100 USER S MANUAL REV1 0 3D ACCELERATOR 9 6 83 Figure 9 6 18 Per Fragment Function Block Diagram ...
Страница 1321: ...3D ACCELERATOR S5PC100 USER S MANUAL REV1 0 9 6 94 Interface with AXI Bus FIMG_3DSEV1 1 AXI DMA support AMBA AXI BUS protocol ...
Страница 1353: ...TVOUT VIDEO DAC S5PC100 USER S MANUAL REV1 0 9 7 32 ...
Страница 1452: ...S5PC100 USER S MANUAL REV1 0 VIDEO PROCESSOR 9 8 43 NOTES ...
Страница 1482: ...MIXER S5PC100 USER S MANUAL REV1 0 9 9 30 NOTES ...
Страница 1584: ...MFC MULTI FORMAT CODEC S5PC100 USER S MANUAL REV1 0 9 11 16 5 2 ENCODING FLOW Figure 9 11 11 Encoding Flow ...
Страница 1664: ...S5PC100 USER S MANUAL REV1 0 I2S CONTROLLER 5 1CH 10 2 31 NOTES ...
Страница 1701: ...AC97 CONTROLLER S5PC100 USER S MANUAL REV1 0 10 4 18 NOTES ...
Страница 1731: ...SPDIF TRANSMITTER S5PC100 USER S MANUAL REV1 0 10 6 16 NOTES ...
Страница 1744: ...S5PC100 USER S MANUAL REV1 0 ADC AND TOUCH SCREEN INTERFACE 10 7 13 NOTES ...
Страница 1750: ...KEYPAD INTERFACE S5PC100 USER S MANUAL REV1 0 10 8 6 Figure 10 8 7 Keypad I F Block Diagram ...
Страница 1755: ...S5PC100 USER S MANUAL REV1 0 KEYPAD INTERFACE 10 8 11 NOTES ...
Страница 1779: ...SECURE DOMAIN MANAGER S5PC100 USER S MANUAL REV1 0 11 2 22 NOTES ...
Страница 1841: ...S5PC100 USER S MANUAL REV1 0 ELECTRICAL DATA 12 1 9 EXTCLK tRESW nRESET Figure 12 1 4 Manual Reset Input Timing ...
Страница 1846: ...ELECTRICAL DATA S5PC100 USER S MANUAL REV1 0 12 1 14 6 ONENAND AC ELECTRICAL CHARACTERISTICS Figure 12 1 7 OneNand Flash Timing ...