Check-Write Order - Xerox 7250 Reference Manual

Read byte from disk.
Sat "data overrun ~
indicator.
Nono~rotional is r_t
to o~rational at
/\eXt
sector.
/-,
/
,
>------_..t
T.E.,~------.IIol(
U.E.I
'-~
,_/
Figure 12. Check-write Order
Write-protect is
relMOt
when new
oddre"
<
4CJ7 •
yes
Read parity check
byte.
-,
-,
T. E.
i---{
u.
E.
I
,~
\..
Additional Programming Considerations 25