The Parallel Port: Miscellaneous

To Do

EPP, ECP
Electrical Specs
(Briefly: output resistance shall be 50R, pull-ups of 1k2 on all inputs. Bi-di data lines have both resistors, 1k2 behind 50R (seen from bus driver), ie. 1k2 pull-up at cable, not at bus driver.)

IEEE1284	The official protocal specification.
Linux Kernel	An open source implementation of the host's part of the protocol.

October 28th, 2007