a3554dc700
based on the HD64570 chip. Both the 1 and 2 port cards is supported. Line speeds of up to 2Mbps is possible. At this speed about 95% of the bandwidth is usable with 486DX processors. The standard FreeBSD sppp code is used for the link level layer. The default protocol used is PPP. The Cisco HDLC protocol can be used by adding "link2" to the ifconfig line in /etc/sysconfig or where ever ifconfig is run. At the moment only the X.21 interface is tested. The others may need tweaks to the clock selection code. |
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if_sr_isa.c | ||
if_sr.c | ||
if_srregs.h |