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[ax25-layer2] 7-byte address proposal

Barry White bewhite at bigpond.net.au
Thu Aug 3 07:57:08 UTC 2006

TNC2s, and all the MFJs and Tiny2s  use 8440s SSIO and TNC320s together 
with DR200s and some of the plug into PCs TNCs use 8530 SSIO chips.

73 Barry VK2AAB

scott at opentrac.org wrote:

>>Nearly all of them.  TNCs that employ KISS strip the FCS field from
>>the frame they send to the host PC.  Frames it receives from the host
>>PC are bridged to the RF medium after the TNC computes the FCS field
>>for the frame.
> I think we mean different things by 'in hardware'.  I'm talking about a
> linear feedback shift register to compute the FCS, or some sort of dedicated
> HDLC chip.  I've been told some TNCs use such things, but I think all of the
> TNC2 and newer devices I've looked at have done that in the TNC's CPU.

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