Maxim Integrated MAXQ7666 - Manual (Page 79)

Bits 3, 2: DVDD Brownout Interrupt Threshold Bits 1, 0 (VDBI1, VDBI0). These bits are used to select the brownout interrupt thresh-
old level for the DVDD voltage supply. An interrupt flag (DVBI) is set if the DVDD brownout detection is enabled (VDBE = 1 in the APE
register) and the DVDD voltage falls in the threshold range (see table below). To convert the interrupt flag to an interrupt, the DVDD
brownout interrupt enable bit (DVBIE in the AIE register) must be set. Also, global interrupt mask bits IM5 (in the IMR register) and IGE
(in the IC register) must be enabled.
Bits 1, 0: DVDD Brownout Reset Threshold Bits 1, 0 (VDBR1, VDBR0). These bits are used to select the brownout reset threshold
level for the DVDD voltage supply. A reset state is generated to halt program execution if the DVDD brownout reset supervisor is
enabled (VDPE = 1 in the APE register) and the DVDD voltage falls in the threshold range (see table below). Note: The DVDD brownout
reset supervisor is enabled (VDPE = 1) by default after all forms of reset.
VDBI1: VDBI0
BROWNOUT INTERRUPT THRESHOLD
RANGE (V)*
00 2.77–2.99 (default)
01 2.84–3.13
10 2.91–3.20
11 2.99–3.27
VDBR1: VDBR0
BROWNOUT RESET THRESHOLD
RANGE (V)*
00 2.70–2.99 (default)
01 2.77–3.06
10 2.84–3.13
11 2.91–3.20
MAXQ7665/MAXQ7666 User’s Guide
2-7
* Reconfirm the values provided in this table with those in the latest MAXQ7665 and MAXQ7666 data sheets.
* Reconfirm the values provided in this table with those in the latest MAXQ7665 and MAXQ7666 data sheets.
Maxim Integrated