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STRFNFCA 数据表(PDF) 14 Page - STMicroelectronics

部件名 STRFNFCA
功能描述  Near field communication transceiver
PDF  74 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STRFNFCA 数据表(HTML) 14 Page - STMicroelectronics

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Communication protocols
STRFNFCA
14/74
Doc ID 023077 Rev 10
4.2.2
Interrupt mode
When the STRFNFCA is configure to use the SPI serial interface, pin IRQ_OUT is used to
give additional information to user. When the STRFNFCA is ready to send back a reply, it
sends an Interrupt Request by setting a low level on pin IRQ_OUT, which remains low until
the host reads the data.
The application can use the Interrupt mode to skip the polling stage.
Caution:
SPI communication is MSB first.



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