Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
| ID | Date | Version | Classification |
|---|---|---|---|
| 615146 | 08/09/2019 | 1.2 | Public |
MSR (MSR) – Offset 18
Modem Status Register
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 30:5 | - | - | Reserved
|
| 4 | 0h | RO | CTS (CTS) Clear to Send. This is used to indicate the current state of the modem control line cts_n.This bit is the complement of cts_n. When the Clear to Send input (cts_n) is asserted it isan indication that the modem or data set is ready to exchange data with the UART. |
| 3:1 | - | - | Reserved
|
| 0 | 0h | RO | DCTS (DCTS) Delta Clear to Send. This is used to indicate that the modem control line cts_n has changed since the last time the MSR was read. |