----------------------------------
LCD-III
• ROM
(3) Ceramic Filter (This
is
not
applied
to
HD44795.)
GND
C.
~""'-""'-IOSC.
Ceramic Filter: CSB400P (MURATA)
Rf
1Mfl:!: 10%
C.
330
p
F:!:
10% (ceramic cepacitor)
~
33O
p
F:!:
10% (ceramic capacitor)
Rd 2.2kfl:!: 10%
The ceramic filter oscillation does
not
apply when using
"Halt"
and
not
resetting
at
the
time
of
"Halt"
cancellation.
This circuit
is
the
example of
the
typical use.
As
the
oscillation character-
istics
is
not
guaranteed, please consider and examine
the
circuit
constant
carefully on
your
application.
Figure 1 Connection Methods
for
Oscillator
ROM
is
used
as
program and pattern (constants) memory.
stored
in
this area. The area
is
only used to store patterns
(constants) that are referred in programs
by
user.
The instruction used in the
LCD-III
consists
of
10
bits.
The pattern area
is
in pages
61
and 62.
No
program can be
The
program area (instructions can
be
programmed) consists
of
2,048 words (64 x 32)
of
pages 0 through 31. In this area,
either
of
programs
or
patterns can be stored.
I---
64
words----j
1 F
OF
07
3D 3E
3F
-
I-
I-
Program Area
Table 1
ROM
Capacity
Program Area
32
pages
Pattern Area
2 pages
Total Number
2,176
words
of
the
words
(NOTE) 1 page
=
64
words
page 0
page1
page 2
I
\
Timer/Counter Interrupt Address (0 page
3F
address)
Input Interrupt Address
(1
page
3F
address)
'=-
~
~
~-~
page
31
Reset Address
(31
page
3F
address)
Pattern Area
Pattern Area
page
61
page
62
Figure 2
ROM
Address
Space
149
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