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SX8663 bảng dữ liệu(PDF) 23 Page - Semtech Corporation

tên linh kiện SX8663
Giải thích chi tiết về linh kiện  Capacitive Button Matrix (up to 36) and Proximity Controller with Individual LED Drivers and Buzzer Output
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nhà sản xuất  SEMTECH [Semtech Corporation]
Trang chủ  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SX8663 bảng dữ liệu(HTML) 23 Page - Semtech Corporation

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ADVANCED COMMUNICATIONS & SENSING
Rev5 4
th August 2011
© 2011 Semtech Corp.
www.semtech.com
23
SX8663
Capacitive Button Matrix (up to 36) and Proximity Controller
with Individual LED Drivers and Buzzer Output
During the power on period the SX8663 stabilizes the internal regulators, RC clocks and the firmware initializes all
registers.
During the power up the SX8663 is not accessible and I2C communications are forbidden.
As soon as the INTB rises the SX8663 will be ready for I2C communication.
3.14.2 RESETB
When RESETB is driven low the SX8663 will reset and start the power up sequence as soon as RESETB is
driven high or pulled high.
In case the user does not require a hardware reset control pin then the RESETB pin can be connected to VDD.
Figure 20
Hardware Reset
3.14.3 Software Reset
To perform a software reset the host needs to write 0xDE followed by 0x00 at the SoftReset register at address
0xB1.
Figure 21
Software Reset



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