SPRS293A − OCTOBER 2005 − REVISED NOVEMBER 2005

signal groups description

CLKIN

CLKOUT3

CLKOUT2

CLKMODE0

PLLHV

TMS

TDO

TDI

TCK

TRST

EMU0

EMU1

EMU2

EMU3

EMU4

EMU5

16

Clock/PLL

IEEE Standard

1149.1

(JTAG)

Emulation

Control/Status

Reset and Interrupts

BIG/LITTLE

ENDIAN

Reserved

BOOTMODE

RESET NMI EXT_INT7EXT_INT6EXT_INT5EXT_INT4

LENDIAN

EMIFBE§

RSV

RSV

RSV

RSV

BOOTMODE1

BOOTMODE0

ED[15:0]

CE3

CE2

CE1

CE0

Data

Memory Map Space Select

Memory Control

ECLKIN

ECLKOUT

ARE/SDCAS/SSADS AOE/SDRAS/SSOE AWE/SDWE/SSWE ARDY

EA[21:2]

20

Address

Bus

Arbitration

HOLD

HOLDA BUSREQ

BE1 BE0

Byte Enables

EMIF (16-bit)

(External Memory Interface)

The CLKOUT2 pin is multiplexed with the GP[2] pin. Default function is CLKOUT2. To use this pin as GPIO, the GP2EN bit in the GPEN register and the GP2DIR bit in the GPDIR register must be properly configured.

The external interrupts (EXT_INT[7−4]) go through the general-purpose input/output (GPIO) module. When used as interrupt inputs, the GP[7−4] pins must be configured as inputs (via the GPDIR register) and enabled (via the GPEN register) in addition to enabling the interrupts in the interrupt enable register (IER).

§ This pin functions as the Big Endian mode correctness and is used when Big Endian mode is selected (LENDIAN = 0)

Figure 3. CPU (DSP Core) and Peripheral Signals

18

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Texas Instruments TMS320C6712D Signal groups description, Clkin CLKOUT3 CLKOUT2† CLKMODE0 Pllhv TMS TDO TDI TCK Trst, Jtag

TMS320C6712D specifications

The Texas Instruments TMS320C6712D is a high-performance, fixed-point digital signal processor (DSP) that belongs to the TMS320C6000 family, well known for its advanced processing capabilities tailored for demanding signal processing applications. Launched in the early 2000s, the C6712D combines high computational power with a rich set of features, making it suitable for a variety of applications such as telecommunications, audio processing, and industrial control systems.

One of the standout characteristics of the TMS320C6712D is its architecture, which is based on a highly efficient VLIW (Very Long Instruction Word) design. This architecture allows the processor to execute multiple instructions in a single clock cycle, significantly increasing performance. The device operates at clock speeds of up to 150 MHz, providing substantial computational throughput that can handle complex algorithms and real-time processing tasks.

Another key feature of the TMS320C6712D is its 32-bit fixed-point processing capabilities, which allows it to perform difficult mathematical computations efficiently. With an instruction set optimized for DSP applications, the processor includes specialized instructions for multiplying and accumulating operations, as well as support for advanced filtering and generation of audio signals.

The C6712D offers an extensive memory architecture, supporting up to 128 MB of external memory via a 32-bit data bus. It features on-chip SRAM, which provides fast access to data and program storage, enhancing the system's overall performance. Additionally, the device includes a powerful set of peripherals, such as dual asynchronous serial ports (UART), I2C interfaces, and DSP-specific interfaces that facilitate connectivity with other components and systems.

Power consumption is another vital aspect of the TMS320C6712D. It incorporates technologies allowing for low-power operation, which is essential for portable and battery-operated devices. The capability to operate in various power modes helps optimize performance while minimizing energy usage.

In conclusion, the Texas Instruments TMS320C6712D is a versatile and powerful DSP that excels in high-performance applications. Its VLIW architecture, fixed-point processing capabilities, extensive memory options, and low power consumption make it an ideal choice for engineers looking to implement complex signal processing tasks efficiently. Whether used in telecommunications, audio processing, or industrial applications, the C6712D remains a reliable and capable solution in the digital signal processing landscape.