Subject: Sun 3x/80 parallel printer port
To: None <>
From: George Detlefsen <>
List: port-sun3
Date: 12/09/1999 20:45:59
Hello Sun3 fans

Does anyone have any information on the device registers and interrupts
that would be useful in writing a device driver for a Sun3x/80 parallel
printer port ???

The parallel port is implemented in a Paradise/WDC chip marked with:


A disassembled version of the SunOS 4.1.{1,2,3} pp0 driver would also
be helpful.

Cheers, George Detlefsen