Renesas PROM Programming Adapter PCA7408 Manual de usuario Pagina 104

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Vista de pagina 103
M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
Rev.1.00 Oct 01, 2002 page 104 of 110
REJ03B0134-0100Z
Address 00ED16
Addresses 00EE16
b
7
b
6
b
5
b
4
b
3
b
2
b
1
b
0
O
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(
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)
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1
6
]
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OSD
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selection bits
(CK0,CK1)
0
Si
nce t
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e ma
i
n c
l
oc
k
i
s use
d
as t
h
e
clock for display, the oscillation
frequency is limited. Because of this,
the character size in width (horizontal)
direction is also limited. In this case,
pins OSC1 and OSC2 are also used
as input ports P3
3
and P3
4
respectively.
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F
unct
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00
b
0
OSD
osc
ill
at
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frequency
= f(X
IN)
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q
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=
f
(
X
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/
1
.
5
N
ote:
I
t
i
s necessary to connect ot
h
er ceram
i
c resonator or quartz-crysta
l
osc
ill
ator
f
or
OSD
across t
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e pINs
X
IN an
d
X
OUT.
0
0
1
1
1
1
Fi
x t
h
ese
bi
ts to “0.”
R
W
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W
b
7
b
6
b
5
b
4
b
3
b
2
b
1
b
0
A-D control register 1 (AD1) [Address 00EE16]
B
A
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)
Name F
u
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b
2
b
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b
0
0
0
0
:
A
-
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1
0
0
1
:
A
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2
0
1
0
:
A
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3
0
1
1
:
A
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4
1
0
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:
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5
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R
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to
7
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.
R
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