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Sony HCD-C70 - Page 20

Sony HCD-C70
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e
1C201
CD
MECHANISM
CONTROLLER
(
UPD75516GF-431-3B9)
This
controller
exchanges
data
with
CXA1372AQ
(RF
signal
processor,
servo
processor),
CXD2500BQ
(digital
signal
processor),
MSM6538
(digital
filter),
75518GF
(CD
master
controller)
of
the
CD
section.
It
mainly
controls
the
mechanism
section.
Pin
Name
Function
zea
DD
fe
+5V
power
supply
m
—
pet
<
s)
a
ENCODER
E3
ENCODER
E2
ENCODER
El
ENCODER
E0
Stocker
position
detection
decoder
input
3
*1
Stocker
position
detection
decoder
input
2
*1
7
-|-
Stocker
position
detection
decoder
input
1
*1
Stocker
position
detection
decoder
input
0
*1
|
~
—
<=
Oo
aG
0
1
_
A
Input/output
of
data
written
in
and
read
from
SRAM
(LHS160TA)
—
3
14
5
oO
o
=|
s
oO
=
O
Input
of
GFS
signal
from
digital
signal
processor
(CXD2500BQ)
L:
NG.
H:
OK
Input
of
SENS
signal
from
digital
signal
processor
(CXD2500BQ)
Input
of
down
of
up/down
switch
GFS
SENSE
DOWN
SW
20
UP
SW
21
All
22
Al0
19
_
~
Input
of
up
of
up/down
switch
Output
of
address
to
SRAM
(LHS160TA)
>
\o
BK]
dS
(oe)
25
26
LD
ON
Optical
pickup
block
laser
diode
control
output
H:
ON.
L:
OFF
Output
of
write
enable
to
SRAM
nN
~“
=
ies)
Al2
N
oO
foe)
>
~
—_
oS
ivy
Output
of
address
to
SRAM
(LHS160TA)
>
on
es)
NO
>
33
>
w
Dl
als
=12
a
iw)
a
z
>
3
Q
Z
oO
Output
of
address
to
SRAM
(LH5160TA)
W
|
o
|=
U—_—_“
©
38
QINT
utput
of
communication
data
read
request
to
CD
master
controller
(75518GF)
Signal
indicating
type
of
communication
data
from
CD
master
controller
(75518GF)
H:
Mechanism
command.
L:
File
command
40
SACK
oe)
Output
of
communication
answer
code
to
CD
master
controller
(75518GF)
1
=

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