s-35192a Seiko Instruments Inc., s-35192a Datasheet - Page 10

• Manufacturer Part Number: s-35192a
• Description: 3-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

*1. Write-only flag. The S-35192A initializes by writing “1” in this register.
*2. Scratch bit. A R/W-enabled, user-free register.
*3. Read-only flag. Valid only when using the alarm function. When the alarm time matches, this flag is set to “1”, and it is
*4. Read-only flag. “POC” is set to “1” when power is applied. It is cleared to “0” when Read. Regarding “BLD”, refer to “
*5. Test bit for SII. Be sure to set “0” in use.
*6. No effect by Write. It is “0” when Read.
10
3-WIRE REAL-TIME CLOCK
S-35192A
Fixed
Code C2 C1 C0
0110
2. Configuration of command
cleared to “0” when Read.
Low Power Supply Voltage Detection Circuit”.
8 types of command are available for the S-35192A, The S-35192A does Read/Write the various registers by inputting
these fixed codes and commands. The S-35192A does not perform any operation with any codes and commands other
than those below.
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0 Status register 1 access
1 Status register 2 access
0
1
0
1
0 Clock correction register access
1 Free register access
Real-time data 1 access
(year data to)
Real-time data 2 access
(hour data to)
INT register 1 access
(alarm time 1: week/hour/minute)
(INT1AE = 1, INT1ME = 0,
INT1FE = 0)
INT register 1 access
(free register function)
(settings other than alarm time 1)
INT register 2 access
(alarm time 2: week/hour/minute)
(INT2AE = 1)
Command
Description
Table 9 List of Command
Seiko Instruments Inc.
RESET
INT1FE INT1ME INT1AE SC2
SC5
W1
W1
W1
M1
m1
m1
m1
m1
B7
D1
H1
H1
H1
H1
V0
Y1
F0
s1
s1
*2
*1
12
SC6
W2
W2
W2
M2
m2
m2
m2
m2
B6
Y2
D2
H2
H2
H2
H2
V1
F1
s2
s2
/
24
*2
SC0
SC7
W4
W4
W4
M4
m4
m4
m4
m4
D4
H4
H4
H4
H4
B5
Y4
V2
F2
s4
s4
*2
*2
SC1
SC8
M8
m8
m8
m8
m8
B4
Y8
D8
H8
H8
H8
H8
V3
−
−
−
F3
s8
s8
*6
*6
*6
*2
*2
*2
Data
INT1
SC3
SC9
M10
m10
m10
m10
m10
Y10
D10
H10
H10
H10
H10
s10
s10
B3
−
−
−
V4
F4
*6
*6
*6
*2
*2
*3
SC10
INT2
SC4
m20
m20
m20
m20
Y20
D20
H20
H20
H20
H20
s20
s20
B2
V5
−
−
−
−
F5
*6
*6
*6
*6
*2
*3
*2
INT2AE TEST
AM
AM
AM
AM
SC11
BLD
Rev.1.2
m40
m40
m40
m40
Y40
s40
s40
B1
−
−
−
V6
−
−
F6
/
/
/
/
*6
*6
*6
*6
*6
PM
PM
PM
PM
*4
*2
SC12
POC
A1WE
A2WE
A1mE
A2mE
A1HE
A2HE
Y80
B0
V7
−
−
−
−
−
−
−
−
−
F7
_00
*6
*6
*6
*6
*6
*6
*6
*6
*6
*4
*2
*5