<s>
The	O
NEC	O
μPD7720	O
is	O
the	O
name	O
of	O
fixed	O
point	O
digital	B-Architecture
signal	I-Architecture
processors	I-Architecture
from	O
NEC	O
(	O
currently	O
Renesas	O
Electronics	O
)	O
.	O
</s>
<s>
Briefly	O
,	O
the	O
NEC	O
μPD7720	O
runs	O
at	O
4MHz	O
frequency	O
with	O
128-word	O
data	O
RAM	O
,	O
512-word	O
data	O
ROM	O
,	O
and	O
512-word	O
program	O
memory	O
,	O
which	O
has	O
VLIW-like	O
instruction	O
format	O
,	O
enabling	O
all	O
of	O
ALU	B-General_Concept
operation	O
,	O
address	O
register	O
increment/decrement	O
operation	O
,	O
and	O
move	O
operation	O
in	O
one	O
cycle	O
.	O
</s>
