MSM58321 Просмотр технического описания (PDF) - Oki Electric Industry
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MSM58321 Datasheet PDF : 16 Pages
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MSM58321
PIN CONFIGURATION
¡ Semiconductor
16 pin Plastic DIP (top View)
CS2 1
16 VDD
WRITE 2
15 XT
READ 3
14 XT
D0
4
13 CS1
D1
5
12 TEST
D2
6
D3
7
11 STOP
10 BUSY
GND 8
9 ADDRESS WRITE
REGISTER TABLE
Data input/
Address
D0
(A0)
Address input
D1
D2
(A1)
(A2)
D3
(A3)
Register
Name
output
Count value
D0 D1 D2 D3
0
0
0
0
0
S1
* * * * 0 to 9
1
1
0
0
0
S10
** *
0 to 5
2
0
1
0
0
MI1
* * * * 0 to 9
3
1
1
0
0
MI10
** *
0 to 5
4
0
0
1
0
H1
* * * * 0 to 9
Remarks
5
1
0
1
0
D2 = 1 specifies PM, D2 = 0 specifies AM, D3 = 1 specifies 24-hour timer, and
H10
* * * * 0~1 or 0~2 D3 = 0 specifies 12-hour timer.
When D3 = 1 is written, the D2 bit is reset inside the IC.
6
0
1
1
0
7
1
1
1
0
8
0
0
0
1
9
1
0
0
1
A
0
1
0
1
B
1
1
0
1
C
0
0
1
1
D
1
0
1
1
W
D1
D10
MO1
MO10
Y1
Y10
* **
0 to 6
* * * * 0 to 9
* * * * 0 to 3 The D2 and D3 bits in D10 are used to select a leap year.
* * * * 0 to 9
Calendar
Remainder obtained by dividing the
D2 D3
year number by 4
*
0 to 1 Gregorian calendar 0 0
0
* * * * 0 to 9
* * * * 0 to 9
10
3
01
2
11
1
A selector to reset 5 poststages in the 1/215 frequency divider and the BUSY
circuit. They are reset when this code is latched with ADDRESS LATCH and
the WRITE input goes to 1.
E~F
0/1
1
1
1
A selector to obtain reference signal output. Reference signals are output to
D0 – D3 when this code is latched with ADDRESS LATCH and READ input
goes to 1.
Note: (1)
(2)
(3)
There are no bits in blank fields for data input/output. 0 signals are output by reading and data is
not stored by writing because there are no bits.
The bit with marked * is used to select the 12/24-hour timer and the bits marked * are
used to select a leap year. These three bits can be read or written.
When signals are input to bus lines D0 – D3 and ADDRESS WRITE goes to 1 for address input,
ADDRESS information is latched with ADDRESS LATCH.
8
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