21.13 Known NIC Configuration Parameter Strings
This section lists the currently known text configuration parameter strings, their meanings, as well as their possible ranges and values.
| Parameter Name | Description | Possible Values and Range |
| IRQ | Interrupt request | Normal range 2-15 |
| IOADDR | Base address of device control area in I/O space | Usually 0x100-0x400, range 2-32 |
| IOADDRLENGTH | Number of bytes of addressable I/O space used by device | Usually 4, 8, or 16 |
| MEMADDR | Buffer RAM address | 0xA0000-0xF0000, range 4096-65536 |
| MEMADDRLENGTH | Size of device memory window | 0-256k (maybe greater, but not for network interface cards) |
| TRANSCEIVER | Transceiver control; specific to 3Com Etherlink II card | 0 (internal) or 1 (external) |
Note This list cannot be definitive, because vendors create new parameters as needed. Definitions, values, and ranges provided are highly platform and hardware-specific.