MSM6782-01RS 查看數據表（PDF） - Oki Electric Industry
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MSM6782-01RS Datasheet PDF : 17 Pages
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MSM6782-01
¡ Semiconductor
FUNCTIONAL DESCRIPTION
REGISTER TABLE
Register D3
D2
HEX A3A2A1A0 name (MSB)
0 0000
1 0001
2 0010
3 0011
4 0100
5 0101
6 0110
7 0111
8 1000
9 1001
A 1010
B 1011
C 1100
D 1101
E 1110
F 1111
S1
S10
MI1
MI10
H1
H10
D1
D10
MO1
MO10
Y1
Y10
W
CD
CE
CF
s8
fO
mi8
fr
h8
fr
d8
fr
mo8
fr
y8
y80
fr
30-secADJ
t1
TEST
s4
s40
mi4
mi40
h4
PM/AM
d4
*
mo4
*
y4
y40
w4
IRQ-F
t0
24/12
D1
s2
s20
mi2
mi20
h2
h20
d2
d20
mo2
*
y2
y20
w2
CAL/HW
INT/STND
STOP
D0
(LSB)
s1
s10
mi1
mi10
h1
h10
d1
d10
mo1
mo10
y1
y10
w1
HOLD
MASK
REST
Count
range
Note
0 to 9 1-second digit register
0 to 5 10-second digit register
0 to 9 1-minute digit register
0 to 5 10-minute digit register
0 to 9 1-hour digit register
0 to 1, 2 10-hour digit register
0 to 9 1-day digit register
0 to 3 10-day digit register
0 to 9 1-month digit register
0 to 1 10-month digit register
0 to 9 1-year digit register
0 to 9 10-year digit register
0 to 6 Week digit register
— Control register D
— Control register E
— Control register F
• The relation between the register's bit 0 and bit 1 is logically positive as 0=”L” and 1=”H”.
• The counted values are in BCD notation.
For example, with 1-year register (Y1), (y8, y4, y2, y1) = (0, 0, 1, 0) means the last digit (“2”) of
“1992”.
• Bit * also can be used as RAM.
• It is unexecutable to write data into the IRQ-F bit.
The IRQ-F bit is set to “1” when a specified carry determined by the combination of t1 and t0
is executed.
The IRQ-F bit holds “1” until the reading of CD is complete and is reset to “0” automatically
after the reading of CD is complete .
• The bit fo (OSC FLAG) memorizes that oscillation stops.
This bit is used to monitor the battery.
This bit is cleared by writing a “0”. (A “1” also can be written into this bit.)
• The bit fr (READ FLAG) goes “0” when the CE pin is set at “L” level and goes “1” when a carry
occurs for 1-second digit while the CE input is at “H” level.
Thus, it is possible to judge whether a carry occurs for 1-second digit during the reading of
the clock register (CE input = “H”).
If the bit fr is set at “1”, it is required to read the clock register once more.
• The “1” of the PM/AM bit indicates PM and its “0” indicates AM.
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