Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
ID | Date | Version | Classification |
---|---|---|---|
615146 | 08/09/2019 | 1.2 | Public |
MCR (MCR) – Offset 10
Modem Control Register
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
30:6 | - | - | Reserved
|
5 | 0h | RW | AFCE (AFCE) Auto Flow Control Enable. When FIFOs are enabled and the Auto Flow Control Enable (AFCE) bit is set. The bit is used to help for flow control using external IO pins with the pairing device. |
4 | 0h | RW | LoopBack (LoopBack) LoopBack Bit. This is used to put the UART into a diagnostic mode for test purposes. |
3:2 | - | - | Reserved
|
1 | 0h | RW | RTS (RTS) Request to Send. This is used to directly control the Request to Send (rts_n) output. The Request To Send output is used to inform the modem or data set that the UART is ready to exchange data. |
0 | - | - | Reserved
|