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SX8661Z bảng dữ liệu(PDF) 67 Page - Semtech Corporation

tên linh kiện SX8661Z
Giải thích chi tiết về linh kiện  Low Power, Capacitive Button Touch and Proximity Controller with LED Drivers and Analog Output
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nhà sản xuất  SEMTECH [Semtech Corporation]
Trang chủ  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

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ADVANCED COMMUNICATIONS & SENSING
DATASHEET
Revision v4.0, February 2016
© 2012 Semtech Corp.
www.semtech.com
67
SX8661Z
Low Power, Capacitive Button Touch and Proximity Controller
(8 sensors) with LED Drivers and Analog Output
6.2
I2C read
The format of the I2C read is given in Figure 55.
After the start condition [S], the slave address (SA) is sent, followed by an eighth bit (‘0’) indicating a Write. The
SX8661Z then acknowledges [A] that it is being addressed, and the master responds with an 8 bit data consisting
of the Register Address (RA). The slave acknowledges [A] and the master sends the Repeated Start Condition
[Sr]. Once again, the slave address (SA) is sent, followed by an eighth bit (‘1’) indicating a Read.
The SX8661Z responds with acknowledge [A] and the Read Data byte (RD0). If the master needs to read more
data it will acknowledge [A] and the SX8661Z will send the next read byte (RD1). This sequence can be repeated
until the master terminates with a NACK [N] followed by a stop [P].
S
SA
0
RA
A
A
Sr
N
S:
Start condition
SA:
Slave Address
Sr:
Repeated Start condition
A:
Acknowledge
N:
Not Acknowledge (terminating read stream)
RA:
Register Address
RDn: Read Data byte (0...n)
P:
Stop condition
from master to slave
from slave to master
RD0
A
optional
SA
1 A
RD1
optional
RDn
A
P
Figure 55
I2C read



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