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TMS320VC5502 데이터시트(PDF) 155 Page - Texas Instruments |
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TMS320VC5502 데이터시트(HTML) 155 Page - Texas Instruments |
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155 / 189 page ![]() www.ti.com 5.14.2 TIM0/TIM1/WDTOUT General-Purpose I/O Timings TMS320VC5502 Fixed-Point Digital Signal Processor SPRS166H – APRIL 2001 – REVISED NOVEMBER 2004 Table 5-28 and Table 5-29 assume testing over recommended operating conditions (see Figure 5-30). Table 5-28. TIM0/TIM1/WDTOUT General-Purpose I/O Timing Requirements (1) VC5502-200 VC5502-300 NO. UNIT MIN MAX T9 tsu(TIM0GPIO-COH) Setup time, TIM0-GPIO input mode before CLKOUT high 5 ns T10 th(COH-TIM0GPIO) Hold time, TIM0-GPIO input mode after CLKOUT high 0 ns T11 tsu(TIM1GPIO-COH) Setup time, TIM1-GPIO input mode before CLKOUT high 5 ns T12 th(COH-TIM1GPIO) Hold time, TIM1-GPIO input mode after CLKOUT high 0 ns T13 tsu(WDTGPIO-COH) Setup time, WDTOUT-GPIO input mode before CLKOUT high 5 ns T14 th(COH-WDTGPIO) Hold time, WDTOUT-GPIO input mode after CLKOUT high 0 ns (1) In this case, CLKOUT reflects SYSCLK1. The CLKOUT Selection Register (CLKOUTSR) can be programmed to select SYSCLK1 as CLKOUT. Table 5-29. TIM0/TIM1/WDTOUT General-Purpose I/O Switching Characteristics (1) VC5502-200 VC5502-300 NO. PARAMETER UNIT MIN MAX T6 td(COH-TIM0GPIO) Delay time, CLKOUT high to TIM0-GPIO output mode 10 ns T7 td(COH-TIM1GPIO) Delay time, CLKOUT high to TIM1-GPIO output mode 10 ns T8 td(COH-WDTGPIO) Delay time, CLKOUT high to WDTOUT-GPIO output mode 10 ns (1) In this case, CLKOUT reflects SYSCLK1. The CLKOUT Selection Register (CLKOUTSR) can be programmed to select SYSCLK1 as CLKOUT. 155 Specifications |
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