<s>
The	O
S1C6x	B-Device
series	O
is	O
a	O
microcontroller	B-Architecture
families	O
introduced	O
by	O
Epson	O
.	O
</s>
<s>
This	O
Series	O
includes	O
S1C60	O
and	O
S1C63	B-Device
families	O
.	O
</s>
<s>
S1C63	B-Device
is	O
high	O
end	O
version	O
.	O
</s>
<s>
The	O
S1C6x	B-Device
series	O
is	O
a	O
CISC	B-Architecture
Harvard	B-Architecture
architecture	I-Architecture
with	O
12-bit	B-Device
instructions	O
with	O
an	O
8.192	O
word	O
instruction	O
space	O
.	O
</s>
<s>
It	O
uses	O
a	O
4-bit	O
word	O
for	O
either	O
a	O
binary	O
format	O
or	O
as	O
a	O
BCD	O
digit	O
and	O
has	O
16	O
memory	B-General_Concept
mapped	I-General_Concept
registers	B-General_Concept
in	O
register	B-General_Concept
window	I-General_Concept
together	O
with	O
two	O
accumulators	B-General_Concept
,	O
two	O
12-bit	B-Device
pointers	O
and	O
a	O
stack	O
pointer	O
for	O
use	O
in	O
subroutines	O
.	O
</s>
<s>
Most	O
of	O
the	O
instructions	O
operate	O
on	O
either	O
two	O
registers	B-General_Concept
or	O
a	O
register	O
and	O
an	O
immediate	O
value	O
,	O
but	O
the	O
S1C6X	B-Device
series	O
also	O
has	O
some	O
memory-memory	O
and	O
memory-immediate	O
instructions	O
.	O
</s>
