<s>
The	O
Microsecond	B-Architecture
Bus	I-Architecture
,	O
μSB	O
or	O
MSB	O
is	O
an	O
asymmetric	O
serial	B-Protocol
communication	I-Protocol
interface	O
specification	O
for	O
short-distance	O
communication	O
between	O
a	O
master	O
and	O
multiple	O
slaves	O
.	O
</s>
<s>
In	O
case	O
of	O
LVDS	B-Architecture
signaling	O
FDA	O
and	O
FCL	O
are	O
split	O
into	O
four	O
differential	O
lines	O
.	O
</s>
<s>
The	O
clocking	O
scheme	O
of	O
the	O
fast	O
synchronous	O
downstream	O
is	O
closely	O
related	O
to	O
the	O
scheme	O
of	O
the	O
SPI	B-Architecture
bus	I-Architecture
.	O
</s>
<s>
There	O
are	O
implementations	O
for	O
single-ended	O
TTL	B-General_Concept
level	O
signaling	O
,	O
as	O
well	O
as	O
LVDS	B-Architecture
signalling	O
.	O
</s>
