<s>
An	O
oscillator	B-Application
start-up	I-Application
timer	I-Application
(	O
OST	O
)	O
is	O
a	O
module	O
used	O
by	O
some	O
microcontrollers	B-Architecture
to	O
keep	O
the	O
device	O
reset	O
until	O
the	O
crystal	O
oscillator	O
is	O
stable	O
.	O
</s>
<s>
An	O
oscillator	B-Application
start-up	I-Application
timer	I-Application
ensures	O
that	O
the	O
device	O
only	O
operates	O
when	O
the	O
oscillator	O
generates	O
a	O
stable	O
clock	O
frequency	O
.	O
</s>
<s>
The	O
PIC	B-Architecture
microcontroller	I-Architecture
's	O
oscillator	B-Application
start-up	I-Application
timer	I-Application
holds	O
the	O
device	O
's	O
reset	O
for	O
a	O
1024-oscillator-cycle	O
delay	O
to	O
allow	O
the	O
oscillator	O
to	O
stabilize	O
.	O
</s>
