kevin@perle.UUCP (Kevin Pickard) (10/13/90)
I am looking for the interface specification to the
802.2 LLC layer on PCs when talking to token-ring or ether-
net cards. It seems that nobody knows this information. I
have tried calling various card manufacturers, including
Proteon, 3Com and IBM, and they are either unable or unwil-
ling to help me.
In particular, I need to know the following:
- What is the format of the paramter block for all
the 802.2 commands (ie. Open, Transmit, Receive,
Open.SAP, etc.)
- What registers need to be setup before the call.
- What is the interrupt that is called.
If anyone knows how this interface works or knows where
I can get some documentation on it could they please send me
some Email?
Thanks in advance.
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If life was software I would just | o o | Kevin Pickard
reset this year and start again! | . | UUCP: ...!uunet!mnetor!perle!kevin
------------------------------^^^-----------^^^-------------------------------lstowell@pyrnova.pyramid.com (Lon Stowell) (10/17/90)
The answer depends on WHICH vendor's LLC interface and which Token Ring chipset you are using. The IBM interfaces for the IBM chips are available only from IBM....although Madge has claimed to duplicate the IBM interfaces for the T.I. Chipset. Most other vendors use the Sytek based LLC which is supported on the Texas Instruments chipset. The Proteon and 3Com cards use the same LLC as most other T.I. users. Texas Instruments has documentation on both the MAC layer and the LLC layer, including the formats of the initialization blocks, etc. There are two versions of this, the older version is two separate books.... one for the Chipset itself and the MAC layer, the other for their LLC option. The newer manual for the Eagle chipset (TMS380C16) includes info for both MAC and LLC layers. Contact your local TI sales office or any T.I. distributor for price and availability.... I have heard that Western Digital also has a T/R chipset, may want to contact them......
dean@pico.OZ (Dean Economou) (10/19/90)
Many years ago now, I had the manuals for the TI Token Ring chip set. I remember that the information was very comprehensive. Dean.