From: "Kenneth Aafl�y" <[EMAIL PROTECTED]> > Throughout all this fuzz about budget-ci, I have kept scratching my > head trying to figure out if this new code (with little or some > modification) could fit the KNC1/Typhoon/Terratec (budget-av) class > of cards also? > > What kind of chips are you actually communicating with through the > saa7146?
The TT budget CI is as cheap as it gets: The transport stream is routed through a few latches (controlled via GPIO1) from the demodulator through the CI to SAA7146A port D1_A (normal operation is through D1_B, where the demodulator outputs are connected in parallel). The CI control interface is implemented via the DEBI, with a GAL/PLD translating the DEBI protocol to the CI protocol. Comparing the protocols, a simple 1:1 translation of some signals should work for e.g. CI I/O port accesses, if you accept some minor timing specification violations (which may just be what breaks some CAMs :-()... So the TT budget CI consists of only a few latches and a GAL/PLD, that's it. No real "chip" in there. Regards, -- Robert Schlabbach e-mail: [EMAIL PROTECTED] Berlin, Germany -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe linux-dvb" as subject.
