Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
| ID | Date | Version | Classification |
|---|---|---|---|
| 615146 | 08/09/2019 | 1.2 | Public |
Backed Up Control (BUC) – Offset 3414
All bits in this register are in the RTC well and only cleared by RTCRST# assertion.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 6:5 | - | - | Reserved
|
| 4 | 0b | RW | Daylight Savings Override (SDO) When this bit is a '1', the DSE bit in the RTC Register B bit(0) is a RW bit but has no effect where daylight savings is hard-disabled internally. |
| 3:1 | - | - | Reserved
|
| 0 | 0b | RW | Top Swap (TS) 0 = PCH will not invert A16, A17 or A18. |