8 Jan
2001
8 Jan
'01
7:13 a.m.
At 07:05 PM 1/8/2001 +0000, you wrote:
This is sort-of off-topic, but....
Not OTish at all, the Centtonics printer that started this mess is more
than 10 yrs old.
On which edge of Stb/ (i.e. pin 1 of the 36 pin
centronics connector) is
the data necessarily valid. I'd assumed it was the falling edge of stb/
(and several printers seem to confirm this), but at least one computer has
the data lines changing as stb/ goes low, and they're stable as it goes
high again.
The one Centronics line printer I used at Intel needed the data stable at
the leading edge of STROBE*. I don't know what the setup time was though.
--Chuck