12th Generation Intel® Core™ Processor Datasheet Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767626 | 07/13/2023 | Public |
D0i3 Power Control Enables Register (PCE) – Offset B2
This register controls the D0i3 features like Hardware Autonomous Enable,sleep enable, D3-Hot Enable, I3 Enable and PMC Request Enable
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
15:6 | 0h | RO | Reserved |
5 | 0x1 | RW | Hardware Autonomous Enable (HAE) If set, then the IP may request a PG whenever it is idle. |
4 | 0h | RO | Reserved |
3 | 0x1 | RW | Sleep Enable (SE) if clear, then IP will never asset Sleep to the retention flops. If set, then IP may assert Sleep during PGing. Note that some platforms may default this bit to 0, others to 1. |
2 | 0x0 | RW | D3-Hot Enable (D3HE) If set, then IP will PG when idle and the PMCSR[1:0] register in the IP =11. |
1 | 0x0 | RW | I3 Enable (I3E) If set, then IP will PG when idle and the D0i3 register (D0i3C[2] = 1) is set. NOTE: If bits [2:1] = 11, then the IP would PG whenever either PMCSR = 11 or the D0i3C.i3 bit is set. |
0 | 0x0 | RW | PMC Request Enable (PMCRE) If set, then IP will PG when idle and the PMC requests power gating by asserting the pmc_*_sw_pg_req_b signal. |