Maxq610 user’s guide – Maxim Integrated MAXQ610 User Manual
Page 103
6-10
MAXQ610 User’s Guide
Each bit in this register controls the edge select mode for an external interrupt, as follows:
0 = The internal interrupt triggers on a rising (positive) edge .
1 = The external interrupt triggers on a negative (falling) edge .
Bit 7: Edge Select for External Interrupt 15 (IT15)
Bit 6: Edge Select for External Interrupt 14 (IT14)
Bit 5: Edge Select for External Interrupt 13 (IT13)
Bit 4: Edge Select for External Interrupt 12 (IT12)
Bit 3: Edge Select for External Interrupt 11 (IT11)
Bit 2: Edge Select for External Interrupt 10 (IT10)
Bit 1: Edge Select for External Interrupt 9 (IT9)
Bit 0: Edge Select for External Interrupt 8 (IT8)
Register Name
EIES1
Register Description
External Interrupt Edge Select 1 Register
Register Address
M0[0Dh]
Bit #
7
6
5
4
3
2
1
0
Name
IT15
IT14
IT13
IT12
IT11
IT10
IT9
IT8
Reset
0
0
0
0
0
0
0
0
Access
rw
rw
rw
rw
rw
rw
rw
rw