Maxim Integrated MAXQ7666 - Manual (Page 81)

2.2.3 Analog Interrupt Enable Register (AIE)
The AIE register is used to enable interrupts from a variety of analog sources including DVDDIO and DVDD brownout detection.
Register Description: Analog Interrupt Enable Register
Register Name: AIE
Register Address: Module 05h, Index 0Ah
Bits 15 to 7 and 3: Reserved. Read 0, write ignored.
Bit 6: External High-Frequency Oscillator Failure Interrupt Enable (HFFIE). See Section 5 for more information on this register bit.
Bit 5: I/O Voltage Brownout Interrupt Enable (VIOBIE). This bit must be set to logic 1 to generate an interrupt request when a
brownout condition is detected on the DVDDIO voltage and the VIOBI flag (in the ASR register) is set to logic 1. Clearing this bit to 0
disables the interrupt capability from the VIOBI flag. Note: To be acknowledged by the microcontroller interrupt logic, this interrupt
request must also be enabled by the IGE bit in the IC register and the IM5 mask in the IMR peripheral register.
Bit 4: Digital Brownout Interrupt Enable (DVBIE). This bit must be set to logic 1 to generate an interrupt request when a brownout
condition is detected on the DVDD voltage and the DVBI flag (in the ASR register) is set to logic 1. Clearing this bit to 0 disables the
interrupt capability from the DVBI flag. Note: To be acknowledged by the microcontroller interrupt logic, this interrupt request must also
be enabled by the IGE bit in the IC register and the IM5 mask in the IMR peripheral register.
Bit 2: ADC Overrun Interrupt Enable (AORIE). See Section 3 for more information on this register bit.
Bit 1: ADC Data Ready Interrupt Enable (ADCIE). See Section 3 for more information on this register bit.
Bit 0: This bit is implemented and available to be used as a user-software-controlled bit.
Bit # 15 14 13 12 11 10 9 8
Name — — — — — — — —
Reset 0 0 0 0 0 0 0 0
Access r r r r r r r r
Bit # 7 6 5 4 3 2 1 0
Name — HFFIE VIOBIE DVBIE — AORIE ADCIE —
Reset 0 0 0 0 0 0 0 1
Access r rw rw rw r rw rw rw
r = read, w = write
MAXQ7665/MAXQ7666 User’s Guide
2-9
Maxim Integrated