ZSSC3218 Datasheet, PDF (22/55 Pages) Integrated Device Technology – High-End 18-Bit Sensor Signal Conditioner

ZSSC3218 Datasheet
Figure 3.2 Operational Flow Chart: Power Up
Color Legend:
LV Operation
HV Operation
IC Power On
Command:= load I/O setup
IO_mode = I²C™
no
I²C^TM slave address is loaded,
and SS_polarity determines if
SS pin is active high or low
I²C™ Address /
CMD Valid?
no
SS Pin Active?
yes
Power up LV
LV Operation
Save: IC ID / Data / Status
CommandMode
==active || Test==1
yes
no
no
Power Down (switch
off LV and wait for
command)
no
Receive: Command
Received CMD ID
== IC-ID
yes
Read_bit == 1
(Data Fetch)
yes
Execute: Data Fetch
yes
IO_mode:=SPI
Power up LV
LV Operation
Save: Setup / Data /
Status
CommandMode
==active || Test==1
no
yes
no
Power Down (switch
off LV and wait for
command)
no
RST(SS)==1
yes
Receive: Command
NOP
yes
Execute: Data Fetch
© 2016 Integrated Device Technology, Inc.
22
April 20, 2016