On Wednesday, January 09, 2019, Sergei Shtylyov wrote: > > IIRC, this hardware block is also used on RZ/A, which is 32-bit. > > I'm not seeing it in the "RZ/A1H Group, RZ/A1M Group User’s Manual: > Hardware" > Rev 3.00. What SoC did you have in mind? For the RZ/A series (and RZ/T series), it is called the "SPI Multi I/O Bus Controller" (Chapter 17) I have no idea why it has a different name for the same hardware (and the same pages in the manual). The HW version in RZ/A1 does not have HyperRAM. But the HW version in RZ/A2 is the same as what is in R-Car Gen3. Chris