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Any way to inhibit acceptance of maskable interrupts?

Latest Updated:11/10/2015

Question:

Is there any way to inhibit the acceptance of maskable interrupts other than calling loc_cpu?

Answer:

The two methods below are available.

  1. Use chg_ims to change the value of the PSW.IPL bit.
  2. Change the value of PSW.IPL directly (only from within a handler).
Suitable Products
RI600V4 Real-time OS for RX Family
RI600PX Real-time OS for RX Family