snc(4)
NAME
- snc - National Semiconductor DP8393X SONIC Ethernet adapter
- driver
SYNOPSIS
device isa device snc
DESCRIPTION
- The snc driver provides support for the National Semiconduc
- tor SONIC Ethernet adapters.
HARDWARE
The snc driver supports the following cards:
+o National Semiconductor DP83934AVQB
+o NEC PC-9801-83
+o NEC PC-9801-84
+o NEC PC-9801-103
+o NEC PC-9801-104
+o NEC PC-9801N-15
+o NEC PC-9801N-25
+o NEC PC-9801N-J02 PCMCIA
+o NEC PC-9801N-J02R PCMCIA
- The snc driver also includes support for the National Semi
- conductor
NS46C46 as 64 * 16 bits Microwave Serial EEPROM.
IMPLEMENTATION NOTES
- Accessing SONIC card data structures and registers as 32 bit
- values makes
code endianness independent. The SONIC is however always in - big-endian
mode so it is necessary to ensure that data structures - shared between the
CPU and the SONIC card are always in big-endian order. The - snc driver
supports the PC-98 C-Bus, and PnP buses. Support is also - provided for
the legacy C-Bus.
DIAGNOSTICS
- The following driver specific error messages may be report
- ed:
- snc%d: snc_nec16_register_irq: unsupported irq (%d) The
- card returned an
IRQ which is not supported by the driver. - snc%d: invalid packet length %d bytes An attempt to trans
- fer a data
packet failed due to an invalid packet length.
SEE ALSO
card(4), netintro(4), bus_alloc_resource_any(9)
HISTORY
- The snc driver was ported from NetBSD by Motomichi Matsuzaki
<mzaki@e-mail.ne.jp> and Hiroshi Yamashita <blue - moon@msj.biglobe.ne.jp>.
It first appeared in FreeBSD 4.2. This manual page first - appeared in
FreeBSD 5.3.
AUTHORS
- This manual page was written by Tom Rhodes <trhodes@FreeB
- SD.org>.
BUGS
- Currently the snc driver only works on the PC-98 architec
- ture. It should
probably work on the i386 architecture as well. - BSD September 4, 2004