ZiLOG System 8000 Hardware Reference Manual

HRM
SECTOR ID FORMAT
Zilog
HRM
15 14 13 12 11 10 9 8 7 6 5 4 3 2 0
lETlEC:EP:
CYLINDER
HEAD
:FLlSP:
ID:ET
ID:EC
ID:EP
ID:FL
ID:SP
SECTOR FORMAT
SECTOR
ECC MSH
ECC LSH
flags
the
last sector on
each
track
flags
the last sector
on each cylinder
flags the
last sector on
the
pack
flagged (bad)
sector
spare (unused)
sector
Each sector contains an ID field and a data field separated
by gaps. The gap sizes depend on the drive type , as does
the number of sectors per track. One sector on each track is
reserved to serve as a spare sector. If a bad sector is
found, it is fl~gged and the spare is substituted. The SMDC
finds sectors by searching for a matching ID (cylinder, head
and sector)~ The formatter program can implement sector
reassignment and sector interleaving when it formats a track
by properly setting up the ID fields. The gap figures given
are for SMD and may vary for other drives.
4-36
Zilog
4-36

ZiLOG System 8000 Specifications

General

Brand	ZiLOG
Model	System 8000
Category	Desktop
Language	English