<s>
Control	O
and	O
Status	O
Register	B-General_Concept
(	O
CSR	O
)	O
is	O
a	O
register	B-General_Concept
in	O
many	O
central	B-General_Concept
processing	I-General_Concept
units	I-General_Concept
and	O
many	O
microcontrollers	B-Architecture
that	O
are	O
used	O
to	O
store	O
information	O
about	O
instructions	O
received	O
from	O
machines	O
.	O
</s>
<s>
The	O
CSR	O
is	O
generally	O
placed	O
in	O
the	O
register	B-General_Concept
address	O
0	O
or	O
1	O
in	O
CPUs	O
and	O
works	O
on	O
the	O
concept	O
of	O
using	O
a	O
comparison	O
of	O
flags	O
(	O
carry	O
,	O
overflow	O
and	O
zero	O
,	O
usually	O
)	O
to	O
decide	O
on	O
various	O
if-then	B-Language
instructions	I-Language
related	O
to	O
electronic	O
decision	O
flows	O
.	O
</s>
<s>
In	O
digital	O
devices	O
,	O
the	O
control	O
and	O
status	O
registers	O
are	O
described	O
by	O
a	O
register	B-General_Concept
map	O
.	O
</s>
