Using AVRs and RESET pin is more complicated than other IOs. I just want you to confirm if I am right about this pin functionality as an IO.
RESET pin on AVRs with RSTDISBL fuse can be (part dependent):
- 1) Open drain IO driver (mature tn12)
2) Weak IO driver (tn2313,tn13..)
3) Regular strength IO driver?
QA: Datasheets of m48/88/168, usb82/162 and other AVRs with RESETDSBL fuse do not mention the difference in between RESET and a regular IO driver strength in "Pin Driver Strength" sections because:
- a) there isn't any difference.
b) Atmel forgot to write about this fact, and it is still 2) type weak IO capable of 1mA sink/source?
QB: Is this pin still 12V capable, when RSTDISBL is programmed? What happens when it is on 12VDC and I set IO high?