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CLC-Al00
,
8.5 INTERFACE BETWEEN THE PLAYER AND PAC-Sl0 PLAYER
A
P
L
YER
PAC
510
-
MODE
CO
NTROL
E
I 02
O/M(
L
!NE
MUTE)
E
100
X]RO
EI04
DBUSa
E
105
DeUSl
E
10 ..
DBUS2
E
t
07
DBUS
3
E
IOl
COCK
E
103
<oc<
j
NTF
ASS'
I(
IC
30
1
**
The mode
controller
receives
commands
from the PAC - SID.
Fig.8-14
<Mode
Controller
and
PAC
-
SI 0 Communication
Process>
As
a
data bus
(DBUS
0 to
3).
[he
communications
board sends
and
receives
4
-
bil
pardUe] signals. During CD
playback,
communications occur
every 13.3msec
according
to
the
sync
signaL During
LD
playback, it
occurs every
16,6msec
according
to
th
e sync
signaL At
other
limes, il
OCCUr'S
every 20msec
(a
pprox.)
according
to
the mode
controller's timer.
The
5
-
byte
(
\ 0
nibbles)
dala is
sent according
to the follow ing
process:
The
general
communications
flow is shown
below.
(Fig
8-15)
"0
(F
R
AME
SY
NC)
5
BYTE
<D
Mode
Controller
PAC
-
SJO
· ResiXJnse to
a command
received from
PAC
-
SIO in
the
preceding transmission.
·
Current status
(i
ncluding errors)
of
the mode
controller.
·
Transmission of
the player'
s
current
status
(reSiXJnse
to
a
reiXJrt specification).
Since
the
PAC
-
$10 monitors the
status
disclosed
by the
mode
controller,
the
player operates as
desired accordi ng to
whether the issued
command
has
been
received
or
whether an error has occurred. Such information
can
be obtained.
®
PAC
-
SIO
Mode
controller
(
I nibble
,.
4 bits)
·
Command which
controls
the
player.
·
ReiXJrt
specification
which reiXJrts the player's
status.
CO~~~L~-----'-'
-
'
- A-,-o-
,
- -r-------------T
I
T
' t"i
T
Jo
" Ot"t·~crl
----'~
59YTE
I-
1
3. 3m
sec
(16,6.
20
ms
eel
(PLAYER
.
~d
PAC
-
S10
COMMUN ICATI
ON
TIM
IN
G)
'"
COC
K
Deus
0000000000
Fig.8
-
15
-I
OATAI)-.{) ATA9
,
PLAYER
MODE
CONTROL_P",C_S,O
OATA'O-OAT""9
'
P
A
C-Sl~PLAYER
MODE CONTROL
0000000000
0
..
."
.. .,,, "",,,, "",." "'''"
""""
"",.,.
",To"
"",Al, .....
"
99
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