Instruction Manual

5-13 __________________________________________________________________________________________________________
MAXQ7667 User’s Guide
5.2.12 External Interrupt Edge Select Register (Port 1) (EIES1)
Register Description: External Interrupt Edge Select Register (Port 1)
Register Name: EIES1
Register Address: Module 00h, Index 14h
Bits 15 to 8: Reserved.
Read returns 0, write ignored.
Bit 7: Edge Select for External Interrupt 7 (IT7)
IT7 = 0: External interrupt 7 is positive-edge triggered.
IT7 = 1: External interrupt 7 is negative-edge triggered.
Bit 6: Edge Select for External Interrupt 6 (IT6)
IT6 = 0: External interrupt 6 is positive-edge triggered.
IT6 = 1: External interrupt 6 is negative-edge triggered.
Bit 5: Edge Select for External Interrupt 5 (IT5)
IT5 = 0: External interrupt 5 is positive-edge triggered.
IT5 = 1: External interrupt 5 is negative-edge triggered.
Bit 4: Edge Select for External Interrupt 4 (IT4)
IT4 = 0: External interrupt 4 is positive-edge triggered.
IT4 = 1: External interrupt 4 is negative-edge triggered.
Bit 3: Edge Select for External Interrupt 3 (IT3)
IT3 = 0: External interrupt 3 is positive-edge triggered.
IT3 = 1: External interrupt 3 is negative-edge triggered.
Bit 2: Edge Select for External Interrupt 2 (IT2)
IT2 = 0: External interrupt 2 is positive-edge triggered.
IT2 = 1: External interrupt 2 is negative-edge triggered.
Bit 1: Edge Select for External Interrupt 1 (IT1)
IT1 = 0: External interrupt 1 is positive-edge triggered.
IT1 = 1: External interrupt 1 is negative-edge triggered.
Bit 0: Edge Select for External Interrupt 0 (IT0)
IT0 = 0: External interrupt 0 is positive-edge triggered.
IT0 = 1: External interrupt 0 is negative-edge triggered.
r = read, w = write
Note: This register is cleared to 00h on all forms of reset.
Bit #
15 14 13 12 11 10 98
Name — — — — — — — —
Reset 0 0 0 0 0 0 0 0
Access r r rrrrrr
Bit #
7 6543210
Name IT7 IT6 IT5 IT4 IT3 IT2 IT1 IT0
Reset 0 0 0 0 0 0 0 0
Access rw rw rw rw rw rw rw rw