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TMS320DM335 Datasheet(PDF) 107 Page - Texas Instruments |
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TMS320DM335 Datasheet(HTML) 107 Page - Texas Instruments |
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107 / 156 page  GPIx GPOx 4 3 2 1 5.6.2 GPIO Peripheral External Interrupts Electrical Data/Timing EXT_INTx 2 1 TMS320DM335 Digital Media System-on-Chip (DMSoC) www.ti.com SPRS528 – JULY 2008 Figure 5-12. GPIO Port Timing Table 5-12. Timing Requirements for External Interrupts/EDMA Events(1) (see Figure 5-13) DM335 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 DM335 to recognize the GPIO changes through software polling of the GPIO register, the GPIO duration must be extended to allow DM335 enough time to access the GPIO register through the internal bus. Figure 5-13. GPIO External Interrupt Timing Submit Documentation Feedback DM335 Peripheral Information and Electrical Specifications 107 |
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