參數(shù)資料
型號： MSM6542-03RS
廠商： OKI ELECTRIC INDUSTRY CO LTD
元件分類： 時鐘/數(shù)據(jù)恢復(fù)及定時提取
英文描述： 0 TIMER(S), REAL TIME CLOCK, PDIP24
封裝： 0.600 INCH, PLASTIC, DIP-24
文件頁數(shù)： 45/54頁
文件大小： 406K
代理商： MSM6542-03RS
Semiconductor
MSM6542-01/02/03
72
REGISTER TABLE
A
d
r
e
s
A
3
A
2
A
1
A
0
Register
symbol
D
3
D
2
D
1
D
0
Register
name
BANK
0
BANK
1
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
R-S
1
R-S
10
R-MI
1
R-MI
10
R-H
1
R-H
10
R-D
1
R-D
10
R-MO
1
R-MO
10
R-Y
1
R-Y
10
R-W
C
D
C
E
C
F
r-s
8
–
r-mi
8
–
r-h
8
–
r-d
8
*
r-mo
8
*
r-y
8
r-y
80
–
IT/PLS
2
IRQ
FLAG
0
BANKI/0
r-s
4
r-s
40
r-mi
4
r-mi
40
r-h
4
r-pm/am
r-d
4
*
r-mo
4
*
r-y
4
r-y
40
r-w
4
IT/PLS
1
REST
STOP
r-s
2
r-s
20
r-mi
2
r-mi
20
r-h
2
r-h
20
r-d
2
r-d
20
r-mo
2
*
r-y
2
r-y
20
r-w
2
MASK
2
IRQ
FLAG
2
30-s
adjustment
r-s
1
r-s
10
r-mi
1
r-mi
10
r-h
1
r-h
10
r-d
1
r-d
10
r-mo
1
r-mo
10
r-y
1
r-y
10
r-w
1
MASK
1
IRQ
FLAG
1
READ
FLAG
Real
time
one-second
digit
register
Real
time
ten-second
digit
register
Real
time
one-minute
digit
register
Real
time
ten-minute
digit
register
Real
time
one-hour
digit
register
Real
time
PM/AM
ten-hour
digit
register
Real
time
one-day
digit
register
Real
time
ten-day
digit
register
Real
time
one-month
digit
register
Real
time
ten-month
digit
register
Real
time
one-year
digit
register
Real
time
ten-year
digit
register
Real
time
day-of-week
register
Control
D
register
Control
E
register
Control
F
register
Register
symbol
A-S
1
A-S
10
A-MI
1
A-MI
10
A-H
1
A-H
10
A-D
1
A-D
10
A-MO
1
A-MO
10
A-W
A-ENABLE
C
C'
C
D'
C
E'
D
3
a-s
8
*
a-mi
8
*
a-h
8
*
a-d
8
*
a-mo
8
*
a-e
8
–
HD/SFT
D
2
a-s
4
a-s
40
a-mi
4
a-mi
40
a-h
4
a-PM/AM
a-d
4
*
a-mo
4
*
a-w
4
a-e
4
–
CY
2
24/12
D
1
a-s
2
a-s
20
a-mi
2
a-mi
20
r-h
2
a-h
20
a-d
2
a-d
20
a-mo
2
*
a-w
2
a-e
2
TEST
2
CY
1
CAL
D
0
a-s
1
a-s
10
a-mi
1
a-mi
10
a-h
1
a-h
10
a-d
1
a-d
10
a-mo
1
a-mo
10
a-w
1
a-e
1
TEST
1
CY
0
DP
Register
name
Alarm
one-second
digit
register
Alarm
ten-second
digit
register
Alarm
one-minute
digit
register
Alarm
ten-minute
digit
register
Alarm
one-hour
digit
register
Alarm
PM/AM
ten-hour
digit
register
Alarm
one-day
digit
register
Alarm
ten-day
digit
register
Alarm
one-month
digit
register
Alarm
ten-month
digit
register
Alarm
day-of-week
register
Register
to
specify
the
alarm
range
Control
C
register
Control
D'
register
Control
E'
register
Same
as
BANK
0
Since
positive
logic
is
used,
the
high
level
on
a
data
bus
corresponds
to
1
in
a
register.
When
DP
=
1,
data
can
be
written
in
the
BANK
1/0
and
DP
bits.
Wnen
0
is
written
in
the
DP
bit,
a
delay
is
required
until
the
bit
is
set
at
0.
READ
FLAG
and
IRQ.FLAG
0are
read-only
flags.
READ
FLAG
is
cleared
after
data
is
read
from
it.
IRQ.
FLAG
1is
cleared
after
data
is
read
from
it
with
IT/PLS
1set
at
1.
When
IT/PLS
1is
0,
only
0
can
be
written
in
IRQ.
FLAG
1and
it
cannot
be
cleared
when
it
is
read.
Similarly,
IRQ.
FLAG
2is
cleared
after
data
is
read
from
it
with
IT/PLS
2set
at
1.
When
IT/PLS
2is
0,
only
0
can
be
written
in
IRQ.
FLAG
2and
it
cannot
be
cleared
when
it
is
read.
For
the
MSM6542-01/02,
HD/SFT
is
set
internally
at
0.
Data
can
be
written
in
the
C
C'
register
but
it
is
cleared
when
it
is
read.
Therefore,
read
data
is
always
0.
When
r-pm/am
is
1,
the
time
is
P.M.
When
it
is
0,
the
time
is
A.M.
This
is
also
true
for
a-pm/am.
The
contents
of
all
registers
are
unpredictable
when
power
is
turned
on
from
0V
to
5V.
A
hyphen
in
the
table
indicates
that
the
bit
is
not
present.
When
the
bit
is
read,
it
always
provides
0.
When
a
bit
marked
an
asterisk
(*)
in
the
table
is
used
as
part
of
a
clock
register
or
alarm
register,
it
always
provides
0
at
r
ead.
When
the
bit
is
used
as
part
of
RAM,
however,
it
can
be
used
for
read
and
write.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Notes:
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