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Diffstat (limited to 'share/man/man9/microseq.9')
| -rw-r--r-- | share/man/man9/microseq.9 | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/share/man/man9/microseq.9 b/share/man/man9/microseq.9 index e7748df..c4197d9 100644 --- a/share/man/man9/microseq.9 +++ b/share/man/man9/microseq.9 @@ -59,7 +59,8 @@ Thus, any register described later has the same semantic than its counterpart in a PC parallel port. For more info about ISA/ECP programming, get the Microsoft standard referenced as "Extended Capabilities Port Protocol and -ISA interface Standard". Registers described later are standard parallel port +ISA interface Standard". +Registers described later are standard parallel port registers. .Pp Mask macros are defined in the standard ppbus include files for each valid @@ -467,7 +468,8 @@ and then execute the microsequence. .Ss The microsequencer The microsequencer is executed either at ppbus or adapter level (see .Xr ppbus 4 -for info about ppbus system layers). Most of the microsequencer is executed +for info about ppbus system layers). +Most of the microsequencer is executed at ppc level to avoid ppbus to adapter function call overhead. But some actions like deciding whereas the transfer is IEEE1284-1994 compliant are |
