STMicroelectronics /STM32U5Fx /DSI /DSI_TCCR3

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Interpret as DSI_TCCR3

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0HSWR_TOCNT0 (PM)PM

Description

DSI Host timeout counter configuration register 3

Fields

HSWR_TOCNT

High-speed write timeout counter This field sets a period for which the DSI Host keeps the link inactive after sending a high-speed write operation. This period is measured in cycles of lanebyteclk. The counting starts when the D-PHY enters the Stop state and causes no interrupts.

PM

Presp mode When set to 1, this bit ensures that the peripheral response timeout caused by HSWR_TOCNT is used only once per LTDC frame in command mode, when both the following conditions are met: dpivsync_edpiwms has risen and fallen. Packets originated from LTDC in command mode have been transmitted and its FIFO is empty again. In this scenario no non-LTDC command requests are sent to the D-PHY, even if there is traffic from generic interface ready to be sent, making it return to stop state. When it does so, PRESP_TO counter is activated and only when it finishes does the controller send any other traffic that is ready.

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