Datasheet

NXP Semiconductors
KTFRDMPF1550EVMUG
FRDM-PF1550EVM evaluation board
KTFRDMPF1550EVMUG All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
User guide Rev. 2.0 — 7 March 2018
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The Interrupts tab displays status, mask, and sense registers for INT0, INT1, INT3,
and INT4. Selecting the Poll Interrupts checkbox enables update of this information with
period of 500 ms. To activate interrupt, the appropriate mask has to be set. When an
interrupt occurs, the appropriate checkbox is selected. Interrupt can be then cleared by
unchecking this checkbox.
The state of the PF1550 INTB pin is displayed, and updated asynchronously. Interrupts
that are unmasked, causes the INTB pin to go LOW while the interrupt condition exists.
The PF1550 target hardware detects when the INTB pin goes LOW, and sends a
message to the GUI to indicate that an interrupt has occurred. The INTB label on the
panel flashes until the interrupt condition is cleared.