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TMS320VC5504 Datasheet(PDF) 101 Page - Texas Instruments |
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TMS320VC5504 Datasheet(HTML) 101 Page - Texas Instruments |
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101 / 128 page  6.14 Inter-IC Sound (I2S) 6.14.1 I2S Peripheral Register Description(s) TMS320VC5504 Fixed-Point Digital Signal Processor www.ti.com SPRS609A – JUNE 2009 – REVISED JULY 2009 The VC5504 I2S peripherals allow serial transfer of full-duplex streaming data, usually audio data, between the device and an external I2S peripheral device such as an audio codec. The VC5504 supports 4 independent dual-channel I2S peripherals, each with the following features: • Full-duplex (transmit and receive) dual-channel communication • Double buffered data registers that allow for continuous data streaming • I2S/Left-justified and DSP data format with a data delay of 1 or 2 bits • Data word-lengths of 8, 10, 12, 14, 16, 18, 20, 24, or 32 bits • Ability to sign-extend received data samples for easy use in signal processing algorithms • Programmable polarity for both frame synchronization and bit clocks • Stereo (in I2S/Left-justified or DSP data formats) or mono (in DSP data format) mode • Detection of over-run, under-run, and frame-sync error conditions Table 6-26 through Table 6-29 show the I2S0 through I2S3 registers. For more detailed information on I2S peripheral and its registers, see the TMS320VC5505 Inter-IC Sound Bus (I2S) User's Guide (literature number SPRUFP4). Table 6-26. I2S0 Registers HEX ADDRESS ACRONYM REGISTER NAME RANGE 2800h I2S0SCTRL I2S0 Serializer Control Register 2804h I2S0SRATE I2S0 Sample Rate Generator Register 2808h I2S0TXLT0 I2S0 Transmit Left Data 0 Register 2809h I2S0TXLT1 I2S0 Transmit Left Data 1 Register 280Ch I2S0TXRT0 I2S0 Transmit Right Data 0 Register 280Dh I2S0TXRT1 I2S0 Transmit Right Data 1 Register 2810h I2S0INTFL I2S0 Interrupt Flag Register 2814h I2S0INTMASK I2S0 Interrupt Mask Register 2828h I2S0RXLT0 I2S0 Receive Left Data 0 Register 2829h I2S0RXLT1 I2S0 Receive Left Data 1 Register 282Ch I2S0RXRT0 I2S0 Receive Right Data 0 Register 282Dh I2S0RXRT1 I2S0 Receive Right Data 1 Register Table 6-27. I2S1 Registers HEX ADDRESS ACRONYM REGISTER NAME RANGE 2900h I2S1SCTRL I2S1 Serializer Control Register 2904h I2S1SRATE I2S1 Sample Rate Generator Register 2908h I2S1TXLT0 I2S1 Transmit Left Data 0 Register 2909h I2S1TXLT1 I2S1 Transmit Left Data 1 Register 290Ch I2S1TXRT0 I2S1 Transmit Right Data 0 Register 290Dh I2S1TXRT1 I2S1 Transmit Right Data 1 Register 2910h I2S1INTFL I2S1 Interrupt Flag Register 2914h I2S1INTMASK I2S1 Interrupt Mask Register 2928h I2S1RXLT0 I2S1 Receive Left Data 0 Register 2929h I2S1RXLT1 I2S1 Receive Left Data 1 Register 292Ch I2S1RXRT0 I2S1 Receive Right Data 0 Register Submit Documentation Feedback Peripheral Information and Electrical Specifications 101 |
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