i.MX53 interrupt mask was ignored

[torus1000]

Hi chip experts,

I have a very basic question about i.MX53 TZIC.

In spite of IRQ#40 priority and mask set both equal to 8 (see below) but interrupt handler was called and IRQ#40 was pending.

Can anyone help me why IRQ mask was ignored?

Thanks.

TZIC_PRIOMASK
0x00000008 // LSB8 only

TZIC_PRIORITYn  // n=11
0x??????08 // LSB8 for IRQ#40

TZIC_HIPNDn  // n=0..3
0x00000000
0x00000100 // IRQ#40 EPIT-1
0x00000000
0x00000000

TZIC_PNDn  // n=0..3
0x00000000
0x00000100 // IRQ#40 EPIT-1　　　
0x00000000
0x00000200 // IRQ#106 GPIO-6

[igorpadykov · Accepted solution]

Hi torus1000

according to description from RM TZIC_HIPND bits are set

with equal priority/mask

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------