This message is from the T13 list server.
Third, a 'polling host' that never uses the INTRQ signal is likely
to keep
nIEN=1 all the time. This has NO EFFECT on the command protocols
and NO
EFFECT on how a command is executed by the device.
Mmmm. I'd say this differently:
A polling host thread is likely to leave nIEN uncontrolled.
Depending on how many other threads there are in the host that write
o x3F6 DeviceControl for either device 0 or device 1, the nIEN bit
can sit either on or off for a long time ...
NOTE: Everything above applies to Parallel ATA. Please note that
SATA ...
Pata != Patapi != Sata != Satapi != Sat, yes.
