msm62x42b Oki Semiconductor, msm62x42b Datasheet - Page 4

• Manufacturer Part Number: msm62x42b
• Description: Real Time Clock Ic With Built-in Crystal
• Manufacturer: Oki Semiconductor

MSM62X42B
REGISTER TABLE
44
Notes:
0 = "L" level, 1 = "H" level
REST = RESET
PM/AM = 1/0
ITRPT/STND = INTERRUPT/STANDARD
Address
Input
D
0
1
2
3
4
5
6
7
8
9
A
B
C
E
F
1) The writing of bit * is at discretion, but it is handled as "0" in the internal. In addition, it is
2) The writings of "1" to IRQ FLAG bit, and "0" and "1" to BUSY bit are at discretion, but they are not
3) The bits except bit * and the BUSY bit can fully be read and written. However, the writing to the IRQ
4) PM/AM bit is 1 at PM and 0 at AM.
A
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
r
3
unconditionally held at "0" during a read.
carried out. The reading can be done. The writing of "0" to the IRQ FLAG bit is carried out.
FLAG is effective for "0" only.
A
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
2
A
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
A
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Register
Name
MO
MI
MO
MI
H
D
S
Y
C
S
D
Y
C
C
H
W
10
10
10
10
D
1
1
1
E
F
10
i
1
10
1
30 sec.
TEST
mo
ADJ
mi
D
y
S
h
d
y
t
*
*
*
*
*
*
80
1
8
8
8
8
3
8
8
24/12
FLAG
mi
SI
PM/
mo
IRQ
mi
AM
D
y
w
S
h
d
y
t
*
*
40
0
40
4
4
4
4
40
2
4
4
4
Data
/STND
ITRPT
BUSY
STOP
mi
mo
mi
S
h
d
D
y
w
S
h
d
y
*
20
20
20
20
2
2
2
2
20
1
2
2
2
MASK
HOLD
MO
REST
mi
mo
mi
S
D
h
d
y
w
S
h
d
y
10
10
10
10
1
1
1
1
0
10
1
1
10
1
or 0 to 1
Count
value
0 to 9
0 to 5
0 to 9
0 to 5
0 to 9
0 to 2
0 to 9
0 to 3
0 to 9
0 to 1
0 to 9
0 to 9
0 to 6
—
—
—
¡ Semiconductor
1-second digit register
10-second digit register
1-minute digit register
10-minute digit register
1-hour digit register
PM/AM,
10-hour digit register
1-day digit register
10-day digit register
1-month digit register
10-month digit register
1-year digit register
10-year digit register
Week register
Description
r
r
r