Hello,
I was wondering about the interpretation of the ATR
parameters "F" and "D".
ISO 7816-3 says
work etu = 1/D * 1/9600 s
does this means that bitrate shold be set to D* 9600
when the parameter "D" is sent in the ATR ? (for
instance in Cyberflex TA1 = 0x94, and this means that
the bitrate should be 9600 * 8 = 76800)
Also it is said that F parameter must be used for
external clock cards. Exactly when does a card have
internal or external clock?
I'm a bit confused with this. Thanks for any response.
Carlos.
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