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I2S Controller with OCP Interface
The Inter-IC Sound (I2S) bus is a 3-wire serial link bus specially designed for digital audio applications. This bus handles only the audio data transfer, other signals like sub-coding and control are transmitted separately. Many digital audio systems like compact disc, digital audio tape, digital sound processors, and digital TV-sound etc. use this bus to communicate digitally. The three line serial bus consists of a line for two time multiplexed data channels, a word select line and a clock line. The transmitter and receiver have the same clock signal for data transmission, the transmitter as the master has to generate the bit clock, word-select signal and data. In complex systems a system master controls the digital audio data flow between various units.
Features
- Complies fully with I2S bus specification by Philips
- Simple 3-wire synchronous specification for digital audio data transfers
- Software reset
- Event notification through interrupt
- Programmable Master/ Slave mode
- Programmable Transmitter/ Receiver mode
- Programmable serial clock (SCLK) frequency in master mode (8 KHz - 2.5 MHz)
- Programmable serial data word lengths from 8-32 bits
- Programmable word lengths for left and right channels
- Core interface fully complies wih OCP slave specification (basic)
- Configurable OCP databus width to 16/32/64 bits
- Reuse of the core across different On Chip Buses with the help of standard OCP Bus Wrappers
Benefits
- Customization
- SoC Integration
Deliverables
- Fully synthesizable Verilog RTL source code
- Documentation - Data Sheet, User Guide, Verification Description Document
- Self checking Verification Suite
- Synthesis and STA Scripts
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