Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
| ID | Date | Version | Classification |
|---|---|---|---|
| 615146 | 08/09/2019 | 1.2 | Public |
I/O Decode Ranges and I/O Enables (ESPI_IOD_IOE) – Offset 80
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 30 | - | - | Reserved
|
| 29 | 0b | RW | Microcontroller Enable #2 (ME2) Enables decoding of I/O locations 4Eh and 4Fh. |
| 28 | 0b | RW | SuperI/O Enable (SE) Enables decoding of I/O locations 2Eh and 2Fh. |
| 27 | 0b | RW | Microcontroller Enable #1 (ME1) Enables decoding of I/O locations 62h and 66h. |
| 26 | 0b | RW | Keyboard Enable (KE) Enables decoding of the keyboard I/O locations 60h and 64h. |
| 25 | 0b | RW | High Gameport Enable (HGE) Enables decoding of the I/O locations 208h to 20Fh. |
| 24 | 0b | RW | Low Gameport Enable (LGE) Enables decoding of the I/O locations 200h to 207h. |
| 23:20 | - | - | Reserved
|
| 19 | 0b | RW | Floppy Drive Enable (FDE) Enables decoding of the FDD range. Range is selected by LIOD.FDE |
| 18 | 0b | RW | Parallel Port Enable (PPE) Enables decoding of the LPT range. Range is selected by LIOD.LPT. |
| 17 | 0b | RW | Com Port B Enable (CBE) Enables decoding of the COMB range. Range is selected by LIOD.CB. |
| 16 | 0b | RW | Com Port A Enable (CAE) Enables decoding of the COMA range. Range is selected by LIOD.CA. |
| 15:13 | - | - | Reserved
|
| 12 | 0b | RW | FDD Range (FDD) The following table describes which range to decode for the FDD Port |
| 11:10 | - | - | Reserved
|
| 9:8 | 00b | RW | LPT Range (LPT) The following table describes which range to decode for the LPT Port: |
| 7 | - | - | Reserved
|
| 6:4 | 000b | RW | ComB Range (CB) The following table describes which range to decode for the COMB Port |
| 3 | - | - | Reserved
|
| 2:0 | 000b | RW | ComA Range (CA) The following table describes which range to decode for the COMA Port |