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TMS320LC2402APGS 데이터시트(PDF) 77 Page - Texas Instruments |
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TMS320LC2402APGS 데이터시트(HTML) 77 Page - Texas Instruments |
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77 / 134 page ![]() TMS320LF2407A, TMS320LF2406A, TMS320LF2403A, TMS320LF2402A TMS320LC2406A, TMS320LC2404A, TMS320LC2403A, TMS320LC2402A DSP CONTROLLERS SPRS145L − JULY 2000 − REVISED SEPTEMBER 2007 77 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 EMU0 EMU1 TMS TDI TDO TCK VDDO DSP EMU0 EMU1 TMS TDI TDO TCK TCK_RET 13 14 2 1 3 7 11 9 6 inches or less PD GND GND GND GND GND 5 4 6 8 10 12 JTAG Header VDDIO TRST TRST Figure 23. Emulator Connection Without Signal Buffering for the DSP reducing current consumption 240x DSPs incorporate a unique method to reduce the device current consumption. A reduction in current consumption can be achieved by turning off the clock to any peripheral module which is not used in a given application. Table 17 indicates the typical reduction in current consumption achieved by turning off the clocks to various peripherals. See the TMS320LF/LC240xA DSP Controllers Reference Guide: System and Peripherals (literature number SPRU357) for further information on how to turn off the clock to the peripherals. Table 17. Typical Current Consumption by Various Peripherals (at 40 MHz) PERIPHERAL MODULE CURRENT REDUCTION (mA) CAN 8.4 EVA 6.1 EVB 6.1 ADC 3.7† SCI 1.9 SPI 1.3 † This number represents the current drawn by the digital portion of the ADC module. Turning off the clock to the ADC module results in the elimination of the current drawn by the analog portion of the ADC (ICCA) as well. |
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