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TMS320C5515
www.ti.com
SPRS645F – AUGUST 2010 – REVISED OCTOBER 2013
Furthermore, the device includes three integrated LDOs (DSP_LDO, ANA_LDO, and USB_LDO) to power
different sections of the device. The DSP_LDO can provide 1.3 V or 1.05 V to the DSP core (CV DD ),
selectable on-the-fly by software as long as operating frequency ranges are observed. To allow for lowest
power operation, the programmer can shutdown the internal DSP_LDO cutting power to the DSP core
(CV DD ) while an external supply provides power to the RTC (CV DDRTC and DV DDRTC ). The ANA_LDO is
designed to provide 1.3 V to the DSP PLL (V DDA_PLL ), SAR, and power management circuits (V DDA_ANA ).
The USB_LDO provides 1.3 V to USB core digital (USB_V DD1P3 ) and PHY circuits (USB_V DDA1P3 ). The
RTC alarm interrupt or the WAKEUP pin can re-enable the internal DSP_LDO and re-apply power to the
DSP core.
The device is supported by the industry’s award-winning eXpressDSP?, Code Composer Studio?
Integrated Development Environment (IDE), DSP/BIOS?, Texas Instruments’ algorithm standard, and the
industry’s largest third-party network. Code Composer Studio IDE features code generation tools including
a C Compiler and Linker, RTDX?, XDS100?, XDS510?, XDS560? emulation device drivers, and
evaluation modules. The device is also supported by the C55x DSP Library which features more than 50
foundational software kernels (FIR filters, IIR filters, FFTs, and various math functions) as well as chip
support libraries.
Copyright ? 2010–2013, Texas Instruments Incorporated
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