STMicroelectronics STSW-STUSB003
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Below you will find brief information for STEVAL-ISC005V1 STUSB4500. This guide clarifies the software customization of the STUSB4500, a USB Power Delivery sink. It details USB PD negotiation, initialization, reset, PDO register filling, and VBUS control. It also covers status reading, alert management, and policy engine state access.
主な特徴
Configurable USB Power Delivery sink
Up to 3 fixed supply PDO support
I²C interface for software customization
USB-C connection status monitoring
Alert management via interrupt pin
ページ: 45 STMicroelectronics STSW-STUSB003 User manual
ブランド: STMicroelectronics サイズ: 1 MB
言語: English
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よくある質問と回答
How do I initialize the STUSB4500 properly?
Clear all interrupts by reading registers 0x0D to 0x16 and configure the interrupt mask register (@0x0C) according to application requirements.
How can I send a USB PD software reset?
Write 0x0D (SOFT_RESET) in the TX_HEADER_LOW register (@0x51). Write 0x26 (SEND_COMMAND) in the PD_COMMAND_CTRL register (@ 0x1A).
How to force the STUSB4500 to re-negotiate with the SOURCE?
Once the PDO registers have been updated, send a SOFT_RESET_MESSAGE to the SOURCE to initiate a new USB PD negotiation.
How can I read USB-C connection status?
By accessing the PORT_STATUS_1 (@0x0E) and CC_STATUS (@0x11) registers.
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