s-35392a Seiko Instruments Inc., s-35392a Datasheet - Page 33

• Manufacturer Part Number: s-35392a
• Description: 2-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

Rev.1.3
(5) Clock correction register access
(6) Free register access
*1. Set NO_ACK = 1 in Read.
*1. Set NO_ACK = 1 in Read.
_00
SDA
SCL
SCL
SDA
I/O mode switching
I/O mode switching
Figure 39 Clock Correction Register Access
0
0
Device code +
Device code +
1
1
Figure 40 Free Register Access
1
1
command
command
1
1
0
0
Seiko Instruments Inc.
1
1
1
1
0
1
R/W
R/W
9
Clock
correction data
9
B7
B7
Free register
data
I/O mode switching
B0
B0
I/O mode switching
18
18
2-WIRE REAL-TIME CLOCK
S-35392A
33