SPRUJB3 March 2024 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
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 11-66.
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 |