VNN Removal Save And Restore Hardware Contexts 1 (VNNRSNRC1) – Offset c74 - 001 - ID:834576 | Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2

Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2

ID	Date	Version	Classification
834576	10/10/2024	001	Public

VNN Removal Save And Restore Hardware Contexts 1 (VNNRSNRC1) – Offset c74

This is the VNN Removal Save And Restore Hardware Contexts 1 registers. Refer description for each individual field below for more details of the register functionality.

Bit Range	Default	Access	Field Name and Description
31	0h	RW	Reserved (VNNS31SC) <none
30	0h	RW	Reserved (VNNS30SC) <none
29	0h	RW	Reserved (VNNS29SC) <none
28	0h	RW	Reserved (VNNS28SC) <none
27	0h	RW	Reserved (VNNS27SC) <none
26	0h	RW	Reserved (VNNS26SC) <none
25	0h	RW	Reserved (VNNS25SC) <none
24	0h	RW	Reserved (VNNS24SC) <none
23	0h	RW	Reserved (VNNS23SC) <none
22	0h	RW	Reserved (VNNS22SC) <none
21	0h	RW	Reserved (VNNS21SC) <none
20	0h	RW	Reserved (VNNS20SC) <none
19	0h	RW	Reserved (VNNS19SC) <none
18	0h	RW	Reserved (VNNS18SC) <none
17	0h	RW	Reserved (VNNS17SC) <none
16	0h	RW	Reserved (VNNS16SC) <none
15	0h	RW	Reserved (VNNS15SC) <none
14	0h	RW	Reserved (VNNS14SC) <none
13	0h	RW	Reserved (VNNS13SC) <none
12	0h	RW	Reserved (VNNS12SC) <none
11	0h	RW	Reserved (VNNS11SC) <none
10	0h	RW	Reserved (VNNS10SC) <none
9	0h	RW	Reserved (VNNS9SC) <none
8	0h	RW	Reserved (VNNS8SC) <none
7	0h	RW	Reserved (VNNS7SC) <none
6	0h	RW	Reserved (VNNS6SC) <none
5	0h	RW	VNN Spare 5 State Contexts (VNNS5SC) Link Down indicaton will be reflected here.
4	0h	RW	VNN Spare 4 State Contexts (VNNS4SC) DL_ACTIVE (LA) information stored to this flag, so that link will restore back LA upon VNN Removal restoration. Writing to this registers have no effect unless restore_b is assert.
3	0h	RW	VNN Spare 3 State Contexts (VNNS3SC) Legacy Present Detect State Flag (PDS) information stored to this flag, so that link will restore back Legacy PDS Flag upon VNN Removal restoration. Based on PCIEALC.PDSP, this information or New PDS Implementation Context[20] will be selected. Writing to this registers have no effect unless restore_b is assert. Legacy Present Detect State Flag (PDS) information stored to this flag, so that link will restore back Legacy PDS Flag upon VNN Removal restoration. Based on PCIEALC.PDSP, this information or New PDS Implementation Context[20] will be selected. Writing to this registers have no effect unless restore_b is assert.
2	0h	RW	VNN Detect Not PCIe State Contexts (VNNDNPSC) When Link entered Detect Not PCIe state, LTSSM will push the link Detect Not PCIe state information to this flag, so that link will restore back to Detect Not PCIe state behavior upon VNN Removal restoration. Writing to this registers have no effect unless restore_b is assert.
1	0h	RW	VNN L23 State Contexts (VNNL23SC) When Link entered L23 state, LTSSM will push the link L23 state information to this flag, so that link will restore back to L23 state behavior (Actual State restore to Detect Quiet PG) upon VNN Removal restoration. Writing to this registers have no effect unless restore_b is assert.
0	0h	RW	VNN Link Disable State Contexts (VNNLDSC) When Link entered Link Disable state, LTSSM will push the link disable state information to this flag, so that link will restore back to disable state behavior (Actual State restore to Detect Quiet PG) upon VNN Removal restoration.