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3.3.4. Interrupt both-edges register, GPIOIBE

The GPIOIBE register is the interrupt both-edges register. When the corresponding bit in GPIOIS is set to detect edges, bits set to HIGH in GPIOIBE configure the corresponding pin to detect both rising and falling edges, regardless of the corresponding bit in the GPIOIEV (interrupt event register). Clearing a bit configures the pin to be controlled by GPIOIEV. All bits are cleared by a reset.

Table 3.5 shows the bit assignment of the GPIOIBE register.

GPIOIBE register






Interrupt both edges


Bits set, both edges on corresponding pin trigger an interrupt.Bits cleared, interrupt generation event is controlled by GPIOIEV.

Single edge, determined by corresponding bit in GPIOIEV register.

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