EC(4)

NAME
ec - device driver for 3Com Etherlink II (3c503) Ethernet cards

SYNOPSIS
ec0 at isa? port 0x250 iomem 0xd8000 irq 9

DESCRIPTION
The ec device driver supports 3Com Etherlink II (3c503) Ethernet cards.

MEDIA SELECTION
The Etherlink II supports two media types on a single card. All support the AUI media type. The other media is either BNC or UTP behind a transciever. Software cannot differentiate between BNC and UTP cards.

To enable the AUI media, select the 10base5 or aui media type with ifconfig(8) 's ‘media’ directive. To select the other media (BNC or UTP), select the 10base2 or bnc media type.

DIAGNOSTICS

ec0: wildcarded IRQ is not allowed The IRQ was wildcarded in the kernel configuration file. This is not supported.

ec0: invalid IRQ <n>, must be 3, 4, 5, or 9 An IRQ other than the above listed IRQs was specified in the kernel configuration file. The Etherlink II hardware only supports the above listed IRQs.

ec0: failed to clear shared memory at offset <off> The memory test was unable to clear shared the interface's shared memory region. This often indicates that the card is configured at a conflicting iomem address.

SEE ALSO
ifconfig(8), intro(4), isa(4)