Tool/software:
From the TRM it state that ATCM is disable @ address 0x00
And further info it state that only remap address 0x8000_0000 to 0xFFFF_FFFF
Thus, can R5 (MCU or WKUP) access its ATCM upon reset ? is Yes what is the address of ATCM ?
Thanks.
Hello KH Leong,
Sorry for the delayed reply.
I was on leave on Thursday and Friday..
Please look at my comments for your queries.
MCU SOC Addressing – Local vs Global Memory View :
On AM62P , the R5F cores has two memory views:
Local CPU View
• TCM (Tightly Coupled Memory) can be accessed starting from:
• 0x00000000 → TCMA
• 0x41010000 → BTCM
• These addresses are only valid within the R5F core.
• Access is fast and direct (no interconnect or RAT translation needed).
Global SoC View
• When another core or a debugger (e.g., A53 or DMSC) wants to access the same TCM memory, they must use global address space.
• This access goes through the SoC interconnect and possibly requires RAT (Region Address Translation) configuration on the accessing core.
• Each memory region (like TCMA, TCMAB) has a fixed global address.
R5F Core and TCM Access at Reset
• When the R5F core comes out of reset, it:
• Starts executing code from 0x00000000 (which is the TCMA region in local view).
• Can also access TCMB at 0x41010000.
Regards,
Anil.
