參數(shù)資料
型號: S-35392A-I8T1U
元件分類: 時鐘/數(shù)據(jù)恢復(fù)及定時提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO8
封裝: HALOGEN FREE AND LEAD FREE, SNT-8
文件頁數(shù): 22/47頁
文件大?。?/td> 419K
代理商: S-35392A-I8T1U
2-WIRE REAL-TIME CLOCK
Rev.2.0_00
S-35392A
Seiko Instruments Inc.
29
The followings are Read/Write in the S-35392A.
(1)
Data Read in S-35392A
After detecting a start condition, the S-35392A receives device code and command. The S-35392A enters the
Read-data mode by the Read/Write bit “1”. The data is output from B7 in 1-byte. Input an acknowledgment signal
from the master device every moment that the S-35392A outputs 1-byte data. However, do not input an
acknowledgment signal (input NO_ACK) for the last data-byte output from the master device. This procedure
notifies the completion of Read. Next, input a stop condition to the S-35392A to finish access.
18
9
1
ACK
0
1
0
ST
AR
T
SCL
SDA
B7
B0
NO_A
CK
ST
O
P
: Output from S-35392A
: Input from master device
0 1
R/W
Device code + command
Input NO_ACK after the 1st byte
of data has been output.
1-byte data
Figure 30
Example of Data Read 1 (1-Byte Data Register)
36
9
1
ACK
1
0
1
0
ST
AR
T
SCL
SDA
B7
B0
B7
B0
NO_ACK
ST
O
P
1
0
ACK
B0
B7
18
27
ACK
1
: Output from S-35392A
: Input from master device
R/W
Input NO_ACK after the 3rd byte of
data has been output.
3-byte data
Device code + command
Figure 31
Example of Data Read 2 (3-Byte Data Register)
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