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TMS320DM355 Datasheet(PDF) 104 Page - Texas Instruments |
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TMS320DM355 Datasheet(HTML) 104 Page - Texas Instruments |
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104 / 153 page  www.ti.com GPIx GPOx 4 3 2 1 5.6.2 GPIO Peripheral External Interrupts Electrical Data/Timing EXT_INTx 2 1 TMS320DM355 Digital Media System-on-Chip (DMSoC) SPRS463 – SEPTEMBER 2007 Figure 5-12. GPIO Port Timing Table 5-12. Timing Requirements for External Interrupts/EDMA Events(1) (see Figure 5-13) DM355 NO. UNIT MIN MAX 1 tw(ILOW) Width of the external interrupt pulse low 52 ns 2 tw(IHIGH) Width of the external interrupt pulse high 52 ns (1) The pulse width given is sufficient to generate an interrupt or an EDMA event. However, if a user wants to have to recognize the GPIO changes through software polling of the GPIO register, the GPIO duration must be extended to allow enough time to access the GPIO register through the internal bus. Figure 5-13. GPIO External Interrupt Timing 104 Peripheral Information and Electrical Specifications Submit Documentation Feedback |
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