Zynq UltraScale+ Devices Register Reference > Module Summary > GPIO Module > INT_EN_0 (GPIO) Register

INT_EN_0 (GPIO) Register

INT_EN_0 (GPIO) Register Description

Register NameINT_EN_0
Relative Address0x0000000210
Absolute Address 0x00FF0A0210 (GPIO)
Width32
TypemixedMixed types. See bit-field details.
Reset Value0x00000000
DescriptionInterrupt Enable/Unmask (GPIO Bank0, MIO)

This register is used to enable or unmask a GPIO input for use as an interrupt source. Writing a 1 to any bit of this register enables/unmasks that signal for interrupts. Reading from this register returns an unpredictable value. This register controls bank0, which corresponds to MIO[25:0].

INT_EN_0 (GPIO) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
Reserved31:26razRead as zero0x0Not used, read back as zero
INT_ENABLE_025:0woWrite-only0x0Interrupt enable
0: no change
1: clear interrupt mask
Each bit configures the corresponding pin within the 26-bit bank