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(4)
Expansion
I/O
registers (slot
#2)
LCON
register
<7FFE
(16)>
Bit
RW
Signal
Function
7
R
ACK
Significant
with
acknowledge
1
-»0
with
respect to
remote
control
signal
transmission
6
.
.
1
0
R
RMCLOK
Clock produced by
dividing
CLK1/CLK2
frequency
by
128
W
REM
High
output
with
bit serial
data
out-
put generated
in
synchronization with
RMCLK
VCON
register
<7FFF
(16)>
Bit
RW
Signal
Function
7
R
EXTV
Status indicating
availability
of
exter-
nal
video
signal.
Low
when
available;
high
when
not
available.
W
Mute
Line input
signal
muting
6
-
^
=
===
;
|
1
0
R
INTEXV
Interrupt available
with
interrupt
flag
1
when
external
video
signal
is
OFF.
Set to
0
when
read.
W
OVERLAY
Hardware
selection signal
of
superim-
pose/non-superimpose
mode;
0
for
superimpose,
1
for
non-superimpose
1.5
CONNECTOR
(1)
System
control
output
1
®
v
p
R
VOVLY
(OUT)
©-^
y
L
EXTREMO(OUT)
Stereo mini-jack
(3)
System
control
output 2
®
v
p
©
CREMO(OUT)
(?)
—
-U
GND
(2)
System
control input
R
SELECT
I(IN)
L
EXTREMI(IN)
Stereo mini-jack
®
v
ri
©-^
y
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