12th Generation Intel® Core™ Processor Datasheet Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767626 | 07/13/2023 | Public |
Root Status (RSTS) – Offset 60
Root Status
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
31:18 | 0h | RO | Reserved |
17 | 0x0 | RO/V | PME Pending (PP) Indicates another PME is pending when the PME status bit is set. When the original PME is cleared by software, it will be set again, the requester ID will be updated, and this bit will be cleared. Root Ports have a one deep PME pending queue. |
16 | 0x0 | RW/1C/V | PME Status (PS) Indicates that PME was asserted by the requester ID in RID. Subsequent PMEs are kept pending until this bit is cleared. |
15:0 | 0x0 | RO/V | PME Requester ID (RID) Indicates the PCI requester ID of the last PME requester. Valid only when PS is set. Root ports are capable of storing the requester ID for two PM_PME messages, with one active (this register) and a one deep pending queue. Subsequent PM_PME messages will be dropped. |