attiny question

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i have bought couple of attiny85 chips, , have discovered 5 out of 6 i/o pins available.
i know reset can disabled, (this disables programming capabilities),but wondering if there's easier way use 6 pins when found out on ebay digispark controllers usb interface.

question is: reset disabled on these (as uses usb interface)?

there's no usb-specific capability on attiny; digispark implement usb functionality bit-banging appropriate pins. can find more detail on if search "vusb".

given they're using 6 pins think it's guaranteed they've disabled reset pin.


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