SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
Each ring contains four memory spaces on the VBUSM target bus for access, each of which is 512 bytes long, with a total of 4 kB per ring. Each ring space starts immediately after the preceding ring. The allocation per ring is as in Table 11-432.
Offset |
Operation |
Supported Ring Modes |
---|---|---|
0x0 - 0x1FF |
Reads pop from head. Writes push to head. |
Read supported in all modes, write supported in all modes except Ring mode |
0x200 - 0x3FF |
Writes push to tail. Reads pop from tail. |
Write supported in all modes, read supported in all modes except Ring mode |
0x400 - 0x5FF |
Reads peek from head. Writes ignored. |
All modes except for Ring mode. |
0x600 - 0x7FF |
Reads peek from tail. Writes ignored. |
All modes except for Ring mode. |
0x800 - 0xFFF |
Reserved |
Reserved |