maxq3180-ran Maxim Integrated Products, Inc., maxq3180-ran Datasheet - Page 8

• Manufacturer Part Number: maxq3180-ran
• Description: Low-power, Multifunction, Polyphase Afe
• Manufacturer: Maxim Integrated Products, Inc.

Low-Power, Multifunction, Polyphase AFE
• External Interrupt. Driving the SSEL pin low causes
Figure 1. Operating Modes
8
return to a high state, the MAXQ3180 comes out of
reset and goes into Initialization Mode. All registers
are cleared to their default states when exiting Stop
Mode in this manner.
the MAXQ3180 to exit Stop Mode without undergoing
a reset cycle. When exiting Stop Mode in this man-
ner, all register and configuration settings are
_______________________________________________________________________________________
POWER-ON
RESET
INDICATES THAT COMMANDS FROM THE MASTER CAN BE RECEIVED IN THIS MODE.
SET RST = 1
MEASUREMENT
LOW-POWER
LOWPM = 0
STOPM = 1
CLEAR
MODE
SET
(LOWPM = 1)
LPMM
CLEAR NOINIT = 0
MASTER DRIVES
INITIALIZATION
STOP MODE
HARDWARE
POWER-ON
SOFTWARE
SSEL LOW
POWER
MODE?
RESET
RESET
RESET
MODE
Note that when the master is communicating with the
MAXQ3180, the SSEL line is normally driven low at the
beginning of each SPI command. This means that if the
master sends an SPI command after the MAXQ3180
enters Stop Mode, the MAXQ3180 automatically exits
Stop Mode and receives the command.
retained, and the MAXQ3180 automatically resumes
electric-metering functions and sample processing.
CLEAR EXTCLK = 0
DRIVE RESET LOW
SET NOINIT = 1,
DRIVE IRQ LOW
CLEAR ALL REGISTERS
TO DEFAULT STATES
(LOWPM = 0)
CLEAR LOWPM = 0
NORMAL
LOWPM = 1
RUN MODE
STOPM = 1
SET
SET
SET RST = 1
EXTERNAL
RESET