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L9663 bảng dữ liệu(PDF) 24 Page - STMicroelectronics

tên linh kiện L9663
Giải thích chi tiết về linh kiện  PSI5 Transceiver IC
PDF  104 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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L9663 bảng dữ liệu(HTML) 24 Page - STMicroelectronics

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DocID028693 Rev 1
2.6
Reset handling
Four different sources are considered in resetting the IC:
POR (Power On Reset, see Section 2.1)
RESETN pin
SW_RESET
CKER_DETECT
All these sources of reset, when asserted, will switch off the PSIx lines and reset to default
value the device registers (including those registers for configuration).
Additionally to the hardware resets (by pin/POR), a reset can also be initiated by software
(SW_RESET).
The command SW_RESET initiates a soft reset-sequence if all of the following conditions
are fulfilled (see also the DCR register in SPI section):
unlocked state: it means that if the UNLOCK command is not received the command
SW_RESET has no effect;
The command SW_RESET is sent in next SPI communication of the unlock command.
A SW_RESET initiates soft reset-sequence and resets all digital parts of the device, except
POR and RST flag that is set in SR3 register.



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