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AM5726: GPIO7 and GPIO8 interrupt

shigehiro tsuda
Mastermind 9490 points
Part Number: AM5726

Hi,

The following is described in TRM 27.4.2.1 Synchronous Path: Interrupt Request Generation.

The general-purpose interface has 14 interrupt lines (two interrupt lines per GPIO module instance for
biprocessor operation for GPIO1 through GPIO6 and one interrupt line for GPIO7 and GPIO8 module
instance). 


Even if I confirm below TRM, GPIO7 and GPIO8 have 2 interrupts each, and the total of GPIO has 16 interrupts.
Is the above description incorrect?

Figure 27-6. GPIO Integration
Table 17-13. Connection of Device IRQs to IRQ_CROSSBAR Inputs

Best Regards,
Shigehiro Tsuda

  • 0
    TI__Guru**** 170625 points

    Hi Shigehiro,

    Yes, we have 16 interrupts for GPIO, each GPIO module has 2 interrupts.

    GPIOi_IRQ_1 and GPIOi_IRQ_2, i = 1 to 8

    TRM section "27.4.2.1 Synchronous Path: Interrupt Request Generation" should be updated. I will submit a change request.

    27.4.2.1 Synchronous Path: Interrupt Request Generation

    The general-purpose interface has 14 16 interrupt lines (two interrupt lines per GPIO module instance for biprocessor operation for GPIO1 through GPIO6 and one interrupt line for GPIO7 and GPIO8 module instance). The 16 interrupt signals are GPIOi_IRQ_1 (used by the MPU, DSP and IPU subsystems) and GPIOi_IRQ_2 (used by the CROSSBAR), where i = 1 to 8.

    Regards,
    Pavel

  • 0 in reply to Pavel Botev
    Mastermind 9490 points

    Hi Pavel,

    Thank you for quick reply.
    I understand that GPIO have 16 interrupts.

    Best Regards,
    Shigehiro Tsuda