Why can't I see the SFRs for my STM32C551RCT6?

[Ingtsun-Tan]

I'm in debug mode in STM32CubeIDE.

On the SFRs tab in the upper right corner, I want to enable UART4 and check the register status.

But I only see UART-related items: LPUART/USART1/USART2/USART3.

Why can't I find UART4?

My MCU is an STM32C551RCT6.

I'm very certain this IC has UART4

[mƎALLEm]

Hello ​@Ingtsun-Tan  and welcome to the ST community,

I’m escalating it for analysis and eventual feedback. Internal ticket number for follow-up: CDM0064667

[mƎALLEm]

Hello ​@Ingtsun-Tan and sorry for the late answer.

Indeed the team confirmed  that the UART4 SFR registers are missing from the SFR view. In contrast, the SFR registers for LPUART, USART1, USART2, and USART3 are present and accessible. The issue will be fixed.

Hope that helps.