I2S API. More...

#include <bsp/utility.h>

Macros
I2S Digital Audio Input and Output
#define	I2S_DAIO_WORDWIDTH(val) BSP_FLD32(val, 0, 1)

#define	I2S_DAIO_MONO BSP_BIT32(2)

#define	I2S_DAIO_STOP BSP_BIT32(3)

#define	I2S_DAIO_RESET BSP_BIT32(4)

#define	I2S_DAIO_WS_SEL BSP_BIT32(5)

#define	I2S_DAIO_WS_HALFPERIOD(val) BSP_FLD32(val, 6, 14)

#define	I2S_DAIO_MUTE BSP_BIT32(15)

I2S Status Feedback
#define	I2S_STATE_IRQ BSP_BIT32(0)

#define	I2S_STATE_DMAREQ_0 BSP_BIT32(1)

#define	I2S_STATE_DMAREQ_1 BSP_BIT32(2)

#define	I2S_STATE_RX_LEVEL_GET(reg) BSP_FLD32GET(reg, 8, 11)

#define	I2S_STATE_TX_LEVEL_GET(reg) BSP_FLD32GET(reg, 16, 19)

I2S DMA Configuration
#define	I2S_DMA_RX_ENABLE BSP_BIT32(0)

#define	I2S_DMA_TX_ENABLE BSP_BIT32(1)

#define	I2S_DMA_RX_DEPTH(val) BSP_FLD32(val, 8, 11)

#define	I2S_DMA_TX_DEPTH(val) BSP_FLD32(val, 16, 19)

I2S Interrupt Request Control
#define	I2S_IRQ_RX BSP_BIT32(0)

#define	I2S_IRQ_TX BSP_BIT32(1)

#define	I2S_IRQ_RX_DEPTH(val) BSP_FLD32(val, 8, 11)

#define	I2S_IRQ_TX_DEPTH(val) BSP_FLD32(val, 16, 19)

I2S Transmit and Receive Clock Rate
#define	LPC24XX_I2S_RATE(val) BSP_FLD32(val, 0, 9)

#define	LPC32XX_I2S_RATE_X_DIVIDER(val) BSP_FLD32(val, 0, 7)

#define	LPC32XX_I2S_RATE_Y_DIVIDER(val) BSP_FLD32(val, 8, 15)

Detailed Description

I2S API.

Data Structures