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I
\
3
D3{SCOR}
-rr-r
rTr
l-r
l-rz-
r l-r
l-r
r-r
l-r
l-
D 4 ( s u B o l
v l p 0 ( 1 l v l p 1 ( 1 ) v c o p y ( 1 x E M p ( 1 ) \ _ _ _ _
X r o o t z l X r o r t z l r c o p v t z t Y
e u p t z t v
D2{WFCK)
C R C F
lnternal
register
F i s . 8 - 5
LFCK
5) Validity flag
For validity flag, apply the flag synchronized
L R C K t o V R D T Y ( p i n 4 ) a s s h o w n i n F i g . g - 6 .
i;.',li | ;i;:r:r,:.1
:'r:
DATA
VNDTY
F i s . 8 - 6
Pu
NU
r.'
t3
C I R C U I T D E S C R I P T I O N
4) User-definable data
The U-bit data is reserved for inch:ding the CD sub-
code. Similarly to C-bit data, the CD subcode can be super-
imposed by supplying the CD LSI output directly to the
s i g n a l d e m o d u l a t o r L S l .
When WFCK is input to D2 (pin 26) and SCOR to D3
( p i n 2 5 ) , E X C K { p i n 2 8 ) i s o u t p u t . W h e n E X C K i s i n p u t t o
CD LSl, it outputs SBSO (subcode data), which is input to
D 1 ( p i n 2 7 ) .
rD0{0), rD1 (0), coPY{o}, EMP(ol
rD0(1 1, lDl (1 ), COPY(1 ), Er,rP(l )
1 9
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