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Altera_Forum's avatar
Altera_Forum
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15 years ago

JTAG and/or IO pin usage

Hello all, I'm new to CPLDs but I'm very keen on getting a little project up and running soon. The basic question is: is it possible to program a EPM3064 through the JTAG pins, then use th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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1) I need the 5V-tolerant inputs

2) because it's still pretty cheap (I was originally looking at the epm3032 which is very cheap, but alas too small)

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Fair enough. I'd place-and-route your CPLD design before making any final decision (since the part is a logic cell light-weight). If you need more logic, then you can use bus-switches to get 5V tolerance. The schematic I referenced has a 5V tolerant, hot-swappable, compactPCI interface.

Cheers,

Dave