Download FS1610

FS1610
NOPOWER
Boot internal system controller
Load EEPROM configuration
parameters
VBATBU >
VBUMIN ?
Boot internal system controller
Load EEPROM configuration
parameters
NO
YES
YES
Wake up on
ADPTR_IN
option?
Internal POR cycle
TIMED_WAKEUP
option?
YES
NO
nEXTON
stays Low for >
ExtOnTimeout?
NO
SHUTDOWN
YES
Set ADPT_TESTRES
to FALSE
NO
NO
ADPTR_IN?
NO
YES
ADPT_
TESTRES
TRUE?
Set to TRUE
by POR
VIN > VBTMIN
Turn off system
controller
YES
YES
READY
NO
NO
YES
NO
VMAIN >
VDB (Default)
ADPTR_IN?
Enable all internal subsystems
Turn on EXTPEN output
Start READY state 10 second
time-out
Enable PWREN[0] voltage
rails, if any.
YES
YES
NO
nEXTON Low?
READY
state time-out
expired?
If L > H transition on
PWREN[5:1], enable rails
controlled by those signals
NO
YES
NO
Any voltage rail
enabled?
YES
Turn off READY time-out
ACTIVE
Figure 18. Simplified Cold Start Power-up Flow Chart
PRELIMINARY
Rev. 6.2/Aug 06
FyreStorm, Inc.
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