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SMV320C6727B-SP Datasheet(PDF) 3 Page - Texas Instruments |
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SMV320C6727B-SP Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 112 page  SMV320C6727B-SP www.ti.com SPRS675G – FEBRUARY 2013 – REVISED JANUARY 2014 The asynchronous memory interface can also be configured to support 8- or 16-bit-wide NAND flash. It includes a hardware ECC calculation (for single-bit errors) that can operate on blocks of data up to 512 bytes. Universal Host-Port Interface (UHPI) for High-Speed Parallel I/O. The Universal Host-Port Interface (UHPI) is a parallel interface through which an external host CPU can access memories on the DSP. Three modes are supported by the C6727B UHPI: • Multiplexed Address and Data - Half-Word (16-bit-wide) Mode (similar to C6713) • Multiplexed Address and Data - Full Word (32-bit-wide) Mode • Non-Multiplexed Mode - 16-bit Address and 32-bit Data Bus The UHPI can also be restricted to accessing a single page (64K bytes) of memory anywhere in the address space of the C6727B; this page can be changed, but only by the C6727B CPU. This feature allows the UHPI to be used for high-speed data transfers even in systems where security is an important requirement. The UHPI is only available on the C6727B. Multichannel Serial Ports (McASP0, McASP1, and McASP2). The multichannel serial port (McASP) seamlessly interfaces to CODECs, DACs, ADCs, and other devices. Each McASP includes a transmit and receive section which may operate independently or synchronously; furthermore, each section includes its own flexible clock generator and extensive error-checking logic. As data passes through the McASP, it can be realigned so that the fixed-point representation used by the application code can be independent of the representation used by the external devices without requiring any CPU overhead to make the conversion. The McASP is a configurable module and supports between 2 and 16 serial data pins. It also has the option of supporting a Digital Interface Transmitter (DIT) mode with a full 384 bits of channel status and user data memory. Inter-Integrated Circuit Serial Ports (I2C0, I2C1). The C6727B includes two inter-integrated circuit (I2C) serial ports. A typical application is to configure one I2C serial port as a slave to an external user-interface microcontroller. The other I2C serial port may then be used by the C6727B DSP to control external peripheral devices, such as a CODEC or network controller, which are functionally peripherals of the DSP device. The two I2C serial ports are pin-multiplexed with the SPI0 serial port. Serial Peripheral Interface Ports (SPI0, SPI1). As in the case of the I2C serial ports, the C6727B DSP also includes two serial peripheral interface (SPI) serial ports. This allows one SPI port to be configured as a slave to control the DSP while the other SPI serial port is used by the DSP to control external peripherals. The SPI ports support a basic 3-pin mode as well as optional 4- and 5-pin modes. The optional pins include a slave chip-select pin and an enable pin which implements handshaking automatically in hardware for maximum SPI throughput. The SPI0 port is pin-multiplexed with the two I2C serial ports (I2C0 and I2C1). The SPI1 serial port is pin- multiplexed with five of the serial data pins from McASP0 and McASP1. Real-Time Interrupt Timer (RTI). The real-time interrupt timer module includes: • Two 32-bit counter and prescaler pairs • Two input captures (tied to McASP direct memory access [DMA] events for sample rate measurement) • Four compares with automatic update capability • Digital Watchdog (optional) for enhanced system robustness Copyright © 2013–2014, Texas Instruments Incorporated Floating-Point Digital Signal Processor 3 Submit Documentation Feedback Product Folder Links: SMV320C6727B-SP |
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