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SNC(4)		     FreeBSD/i386 Kernel Interfaces Manual		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 Semiconductor SONIC Eth-
     ernet 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 Semiconductor
     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 reported:

     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 transfer 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 <bluemoon@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@FreeBSD.org>.

BUGS
     Currently the snc driver only works on the PC-98 architecture.  It should
     probably work on the i386 architecture as well.

FreeBSD 7.2		       September 4, 2004		   FreeBSD 7.2
NAME | SYNOPSIS | DESCRIPTION | HARDWARE | IMPLEMENTATION NOTES | DIAGNOSTICS | SEE ALSO | HISTORY | AUTHORS | BUGS

Want to link to this manual page? Use this URL:
<http://www.freebsd.org/cgi/man.cgi?query=snc&sektion=4&manpath=FreeBSD+6.4-RELEASE>

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