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more
about Sharp
PC-1500
at
http://www.PC-1500.info
(3)
Connector
signal
descriptions
Pin
No.
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2
1
22
23
24
2
5
(
4)
Timing
chart
Power
On
!NI
T _
_
_,
Signal
narne
STROBE
DATA
1
DATA
2
OATA 3
DATA
4
DATA
5
DATA
6
DATA
7
DATA
8
BUSY
!NIT
N.C.
N.C.
GND
GND
GND
GN
D
GN
O
GND
GND
GNO
GND
GND
GND
GNO
8
us y
- -
--
--J
·In/Ou
t
Out
Out
Out
Ou
t
Ou
t
Out
Out
Out
Out
In
I
Ou
t
Description
Datii ou tp
ut
str obe.
N
romally
high
,
ht1t
tu
rns
low du
rin
g
data
o
u
tpu
t.
S·bit
data
signal.
High
when
the data
is
"1
".
Bit
s'tate
is
reta ined u
nit
!
output of nex
t
data
after send
ing out
the
STROBE signal.
\Vhen
high,
data outp
u
t
is
held
u
p
assu
ming
the
peri
phera
l
is
BUSY.
N
ormally
high,
but
tow st.1te
of
signal
is
issued a
ft
er po1.·
..
er on.
If
BUSY for
m
o
re
than
10
seconds.
it
establishes
ER ROR
69.
N
on-Con
nect
ion
Non-Con
nection
In
logically
GND
le.,el,
and
also is
a
twist
pair
p
atterfl
si911
al
for
each
s
ignal.
D
A T
AB.-:-:
1
.
...
....
..
..........
....
. - -
-- -
--
-
- - -
---·
. .
· · - --· · · ·
---........ .
X
Valid
data
L
S
TROSE
*
)
:
DATA
8
- 1 are retained for a minimum of 1.5 ms
after
risi
ng of STROBE
signal
and
fur·
tiler
retained
until
the
next
DATA
s-
1 is outputted
(until BUSY
turns low).
Do not
sell
this
PDF !!!
66
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