Hi, On 5/11/06, jackie wong <[EMAIL PROTECTED]> wrote:
Dear all, I would like to know what is the sequence or priority in deciding which volatge to used to power on the card? I read something on this where i'm not sure whether it is correct or not. It stated as below. 1. First try to power on the card with 3V. If both the card and reader support 3V, then the card should be power on successfully with 3V.
Voltage level handling should be taken care of, by the reader itself.
2. If failed, then only try power on card with 5V.
3V cards are not that much in vogue as the their 5V counterparts. Hence, some readers by default power up with 5V only (for better performance reasons), and keep the 3V support as optional. Verify with the reader spec whether that this is the case.
Voltage supported for my reader and card: Reader supported voltage is 3V and 5V. (ASEDrive IIIeserial)Card support voltage is 2.7V-5.5V. (Cryptographic card) Therefore, I need to power on my card with 3V voltage. Is that right? Reagrds, jackie wong ________________________________ Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1ยข/min. _______________________________________________ Muscle mailing list [email protected] http://lists.drizzle.com/mailman/listinfo/muscle
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