Adjective
maskable (not comparable)
(computing, usually of an interrupt) That can be masked (disabled).
The simultaneous assertion of the NMI and IRQ (maskable) hardware interrupt lines causes IRQ to be ignored. Source: Internet
Most devices that were maskable allowed the mask bit to be selected via a jumper on the board. Source: Internet
The illegal instruction fetch is not maskable, and many TRS-80 Color Computer users reported that their 6309's were "buggy" when in reality it was an indicator of enhanced and unknown features. Source: Internet