The interrupt bit that when set works at level 1, and otherwise at level 0 is
A. PT1
B. PT0
C. PX1
D. all of the mentioned
Answer:A
The interrupt bit that when set works at level 1, and otherwise at level 0 is
A. PT1 B. PT0 C. PX1 D. all of the mentioned
Explanation: the bits, PT1, PT0, PX0 and PX1 when set, work at level 1, otherwise at level 0.