BASF 6106 - Page 9

1.8.1.2. SOFT SECTORED TRACK FORMAT
WITH
9
SECTORS
PER TRACK
In
this format, which
is
shown
on Fig. 1 -8,
each sector contains 256 bytes.
INDEX
GAPl SECTOR IDEKTIFIERI
IDENTIFIER
GAP|FIRST DATA BLOCK! DATA BLOCK
GApPltLAST DATA BLOCK!
DATA BLOCK
GAPItRACK
GAP
iioaa
265 BYTES
k32+Y>.X
FF
R!
265 BYTES
\
(32+Y)
X
FF
F32+ZTX~F?
X X FF
1 3 BYTES
II X FF
lit SECTOR
r~i_
INDEX PULSE
SECTOR
IDENTIFIER:
X
Y
+
2
-
204
BYTES
IDENTIFIER MARK ADDRESS IDENTIFIER
E D
C
6 X 00
FF.
1)
TRK 00 SEC
01
2 BYTES
C7
2)
ID-AM
DATA BLOCK:
DATA
MARK
DATA
FIELD
E
D
C
6 X
00
FB
!>•
256
BYTES
2 BYTES
C7
2)
DATArAM
1)
DATA
PATTERN
2)
CLOCK PATTERN
•
DELETED AM
: P8
+
9t
SECTOR
ID
-
AM.
SEP
CLOCK
(C7)
SEP
DATA
(PE)
DATA
-
AM:
SEP CLOCK
(C7)
SEP DATA
(FB)
£
8
C
7
<
ft
m i
1
BYTE
C, c
6
Cj C
'8
°7
D
6
D
5
D
4
;
'. \
i
.
Cg C
?
C
6
C
5
C
4
C
3
C2 C,
C
LA ±L
II
D, D, D
6 5
^
»
2
D,
I
LI
DELETED
DATA
-
AM:
jj
C?
%
C
n
5
S
C3
*
C]
D
8
D
7
D
6
°5
%
SEP
DATA (P8)
.
m
m Ml
M
FIGURE
1
-
8
.
SOFT
SECTORED
TRACK FORMAT WITH
9
SECTORS/TRACK
1
-
9