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ST72681/R20 bảng dữ liệu(PDF) 15 Page - STMicroelectronics

tên linh kiện ST72681/R20
Giải thích chi tiết về linh kiện  USB 2.0 high-speed Flash drive controller
PDF  32 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72681/R20 bảng dữ liệu(HTML) 15 Page - STMicroelectronics

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ST72681
Human interface implementation
15/32
6
Human interface implementation
6.1
LED behavior
The application is designed to manage 2 LEDs. This behavior is configurable through PC
dedicated software: ‘ST7268x Production Tool’.
By default, LED 1 responds to NAND access activity and LED 2 responds to USB activity.
Use of LED 1 is optional. When this option is not active, LED 2 reacts to both USB and
NAND activity.
6.2
Read only switch
The READ ONLY pin of the ST72681 is an input pin to be connected to VDD or GND
depending on the behavior of the device.
●
When this pin is connected to GND, no limitations are applied on the PC command
received.
●
When this pin is connected to VDD or unconnected, the firmware filters all accesses to
the NAND which modify the NAND state (write, erase, etc.) and returns an error to the
PC.



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