Intel® Core™ Ultra 200V Series Processors SOC I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 831520 | 09/03/2024 | 001 | Public |
DEVIDLE Control (HECI1_DEVIDLEC) – Offset 800
This register allows host to configure the power mode
using D0i0/D0i3 support.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:5 | 0h | RO | Reserved (RSVD_31_5)
|
| 4 | 1h | RO | Interrupt Request Capable (IRC) Set to be always 1'b1 since CSE is capable of generating an interrupt on command completion. |
| 3 | 0h | RO | Restore Required (RR) When this bit is set (by HW), SW must restore the state of the |
| 2 | 0h | RW | Dev Idle state (DEVIDLE) SW sets this bit to 1'b1 to move the function into the DevIdle state. Writing this bit to 1'b0 will return the function to the fully active D0 state (D0i0). |
| 1 | 0h | RW | Interrupt Request (IR) SW sets this bit to 1'b1 to ask for an interrupt to be generated on completion of the command. |
| 0 | 0h | RO/V | Command In Progress (CIP) HW sets this bit on a 1'b1->1'b0 or 1'b0->1'b1 transition of DEVIDLE. While set, the other bits in this register are not valid and it is not allowed for SW to write to any bit in this register. |