RM0477 Reference manual documentation error

[Intector]

Hello STM,

I'm working on a project using the STM32H7R3L8H6H MCU with a PSRAM chip connected via HEXASPI to XSPM1. I'm encountering massive issues with the PSRAM initialization, which I described in a different post. I found a discrepancy between the RM0477 Reference manual documentation and the STM32CubeProgrammer during my tests. 

The XSPI_TCR register is described like this in the RM0477:

If I open the STM32CubeProgrammer register window, I find a DHQC flag on the register bit 28 position.

This bit is set to 1 all the time, and I have no information about its meaning.

Can someone please explain the function of this flag?

The STM32H7Rx/7Sx Arm®-based 32-bit MCUs are somewhat complex devices, and one would expect an actual reference manual. This isn't just some kind of "typo" in the documentation; it's another flag that probably has some functionality attached to it.

Be vigilant and always remember:

"Always be yourself. Unless you can be a pirate. Then always be a pirate."

[KDJEM.1]

Hello @Intector ,

Thank you for bringing this issue to our attention.

I reported this issue internally. And, I will come back to you with details as soon as possible.

Internal ticket number: 201430 (This is an internal tracking number and is not accessible or usable by customers).

Thank you.

Kaouthar