<s>
Register	B-Language
Transfer	I-Language
Notation	I-Language
(	O
or	O
RTN	O
)	O
is	O
a	O
way	O
of	O
specifying	O
the	O
behavior	O
of	O
a	O
digital	B-General_Concept
synchronous	B-Application
circuit	I-Application
.	O
</s>
<s>
An	O
example	O
of	O
high-level	O
RTN	O
is	O
Verilog	B-Language
,	O
and	O
a	O
low-level	O
example	O
is	O
Register	B-Application
Transfer	I-Application
Language	I-Application
.	O
</s>
