Intel® Core™ Ultra 200V Series Processors SOC I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 831520 | 09/03/2024 | 001 | Public |
Power Management Configuration Reg 1 (PM_CFG) – Offset 1818
This register contains misc. fields used to configure the processor power management behavior.
This register is in multiple power wells and reset domains.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31 | 0h | RO | Reserved |
| 30 | 0h | RW | Timing t591 (TIMING_T591) This field configures t591 timing involved in the over-clocking flow (Wait times between writes from PMC to ICC registers when executing BCLK slow ramp flow) |
| 29 | 0h | RW | Allow 24MHz Crystal Oscillator Shutdown (ALLOW_24_OSC_SD) When this bit is '0', the 24MHz crystal oscillator will always be running while in S0. |
| 28 | 0h | RW | Time Sync Maximum Attempts (TS_MAXTRY) The value of this bit determines how many times the PMC will retry time synchronization before stopping and reporting failure to the initiator. |
| 27 | 0h | RO | Reserved |
| 26 | 0h | RW | Boot Media RTD3 Power Management Enable (BMRTD3PME) 0: RTD3 is not enabled. Drive '1' to BOOTMPC pin |
| 25 | 0h | RW | Allow USB2 PHY Core Power Gating (ALLOW_USB2_CORE_PG) When this bit is '0' (default), USB2 PHY power gating is disabled. |
| 24 | 0h | RW/L | Energy Reporting Lock (ER_LOCK) When this bit is written to 1, it will remain 1 until the next RSMRST# assertion. |
| 23:22 | 0h | RO | Reserved |
| 21 | 0h | RW | RTC Wake from DeepSx Disable (RTC_DSX_WAKE_DIS) When set, this bit disables RTC wakes from waking the system from DeepSx. |
| 20 | 0h | RW | Boot Media RTD3 Reset Management Enable (BMRTD3RME) 0: Boot Media device not in D3. Drive '1' to reset pin |
| 19:18 | 0h | RW/L | SLP_SUS# Minimum Assertion Width (SLP_SUS_MIN_ASST_WDTH) This 2-bit value indicates the minimum assertion width of the SLP_SUS# signal to guarantee that the SUS well power supplies have been fully power-cycled. This value may be modified per platform depending on power supply capacitance, board capacitance, power failure detection circuits, etc. |
| 17:16 | 0h | RW/L | SLP_A# Minimum Assertion Width (SLP_A_MIN_ASST_WDTH) This 2-bit value indicates the minimum assertion width of the SLP_A# signal to guarantee that the ASW power supplies have been fully power-cycled. This value may be modified per platform depending on power supply capacitance, board capacitance, power failure detection circuits, etc. |
| 15:14 | 0h | RW/L | SLP_LAN# Minimum Assertion Width (SLP_LAN_MIN_ASST_WDTH) This 2-bit value indicates the minimum assertion width of the SLP_LAN# signal to guarantee that the power to the PHY has been fully power-cycled. This value may be modified per platform depending on power supply, capacitance, board capacitance, power failure detection circuits, etc. |
| 13 | 0h | RW | After G3 Last State Enable (AG3_LS_EN) When PM_CFG.AG3E is '0', AG3_LS_EN determines whether the processor will consider the platform's previous state when determining whether to power-up after G3. |
| 12 | 0h | RW | After Type 8 Global Reset Last State Enable (A8GR_LS_EN) AGR_LS_EN determines whether the processor will consider the platform's previous state when determining whether to power-up after non-thermal and non-explicitly requested type 8 global resets. |
| 11 | 0h | RW | Global Reset Three Strike Counter Enable (GR_TSC_EN) When set, GR_TSC_EN will cause the PMC to keep the platform in S5 after the third consecutive type 7 global reset occurs during the boot flow. The three strike counter is reset in the following situations: |
| 10 | 0h | RW | Power Button Debounce Mode (PB_DB_MODE) This bit controls when interrupts (SMI#, SCI) are generated in response to assertion of the PWRBTN# pin. This bit's values cause the following behavior: |
| 9:8 | 0h | RO | Reserved |
| 7:6 | 0h | RW | T37 Value (T37_VAL) This field determines the delay from ungating the CPU RTC clock until the PMC considers the clock to be valid, allowing the boot flow to proceed. |
| 5 | 1h | RW/V | CPU OC Strap (COCS) SW programs this pin with the value that should be reflected to the GPIO8_OCS pin, when the pin is in native mode. |
| 4:3 | 0h | RO | Reserved |
| 2 | 0h | RW/L | Energy Reporting Enable (ER_EN) When this bit is 1, the processor will periodically calculate and report its energy consumption. When this bit is 0, the processor will neither calculate nor report its energy consumption. |
| 1:0 | 0h | RW/V | Timing t581 (TIMING_T581) This field configures the timing involved in the power down flow. Encodings (all min timings): |