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TNETV2501INPGF 데이터시트(PDF) 164 Page - Texas Instruments |
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TNETV2501INPGF 데이터시트(HTML) 164 Page - Texas Instruments |
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164 / 197 page ![]() Electrical Specifications 164 December 2002 − Revised November 2008 SPRS206K 5.12 General-Purpose Input/Output (GPIOx) Timings Table 5−22 and Table 5−23 assume testing over recommended operating conditions (see Figure 5−26). Table 5−22. GPIO Pins Configured as Inputs Timing Requirements NO. MIN MAX UNIT G2 tsu(GPIO–COH) Setup time, GPIOx input valid before CLKOUT high† 5 ns G3 th(COH–GPIO) Hold time, GPIOx input valid after CLKOUT high† 0 ns † In this case, CLKOUT reflects SYSCLK1. The CLKOUT Selection Register (CLKOUTSR) can be programmed to select SYSCLK1 as CLKOUT. Table 5−23. GPIO Pins Configured as Outputs Switching Characteristics NO. PARAMETER MIN MAX UNIT G1 td(COH–GPIO) Delay time, CLKOUT high to GPIOx output change† 0 8 ns † In this case, CLKOUT reflects SYSCLK1. The CLKOUT Selection Register (CLKOUTSR) can be programmed to select SYSCLK1 as CLKOUT. G1 G2 G3 CLKOUT GPIOx Input Mode GPIOx Output Mode Figure 5−26. General-Purpose Input/Output (GPIOx) Signal Timings |
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