The ICM Region Descriptor Area is a contiguous area of system memory that the controller and the processor can access. When the ICM is activated, the controller performs a descriptor fetch operation at *(ICM_DSCR) address. If the Main List contains more than one descriptor (i.e., more than one region is to be monitored), the fetch address is *(ICM_DSCR) + (RID<<4) where RID is the region identifier.
| Offset | Structure Member | Name |
|---|---|---|
| ICM_DSCR+0x000+RID*(0x10) | ICM Region Start Address | ICM_RADDR |
| ICM_DSCR+0x004+RID*(0x10) | ICM Region Configuration | ICM_RCFG |
| ICM_DSCR+0x008+RID*(0x10) | ICM Region Control | ICM_RCTRL |
| ICM_DSCR+0x00C+RID*(0x10) | ICM Region Next Address | ICM_RNEXT |