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TMS320DM355 Datasheet(PDF) 112 Page - Texas Instruments |
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TMS320DM355 Datasheet(HTML) 112 Page - Texas Instruments |
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112 / 163 page  GPIx GPOx 4 3 2 1 EXT_INTx 2 1 TMS320DM355 SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010 www.ti.com Figure 5-12. GPIO Port Timing 5.6.2 GPIO Peripheral External Interrupts Electrical Data/Timing Table 5-12. Timing Requirements for External Interrupts/EDMA Events(1) (see Figure 5-13) DM355 NO. PARAMETER 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 DM355 to recognize the GPIO changes through software polling of the GPIO register, the GPIO duration must be extended to allow DM355 enough time to access the GPIO register through the internal bus. Figure 5-13. GPIO External Interrupt Timing 112 DM355 Peripheral Information and Electrical Specifications Copyright © 2007–2010, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TMS320DM355 |
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