NEC D2246 Maintenance Manual page 25

Tables
2-1
and
2-2
list sector select switch settings and resulting sector allocations for the
D2246
disk drive.
Table 2-1 Sector Select Switch Settings
(Segment 1
=
0)
SECTOR SWITCH SETTING
Id2bl41516bl81
,-+-I~~I-+-_.
= 0
, , , 1 1
If
TRACK =
20,480
BYTES
SECTORS
2625242322212°
PER
TRACK
o
0 0 0 0 0 1 1
0000010 2
0000011 3
0000100 4
o
0 0 0 101 5
0000110 6
o
0 0 0 1 1 1 7
0001000 8
000 100 1 9
o
0 0 1 0 1 0 10
000 1 0 1 1 11
o
0 0 1 1 0 0 12
o
0 0 1 1 0 1 13
o
0 0 1 1 1 0 14
o
0 0 1 1 1 1 15
o
0 1 0 0 0 0 16
0010001 17
o
0 1 0 0 1 0 18
o
0 1 0 0 1 1 19
o
0 1 0 1 0 0 20
o
0 1 0 1 0 1 21
o
0 1 0 1 1 0 22
o
0 1 0 1 1 1
23
o
0 1 1 000 24
o
0 1 1 0 0 1 25
o
0 1 1 0 1 0 26
o
0 1 1 0 1 1
27
o
0 1 1 1 0 0 28
o
0 1 1 1 0 1 29
o
0 1 1 1 1 0 30
2-8
BYTES
PER
SECTOR
20480
10240
6826
5120
4096
3413
2925
2560
2275
2048
1861
1706
1575
1462
1365
1280
1204
1137
1077
1024
975
930
890
853
819
787
758
731
706
682
EXTRA
SECTOR
BYTES
o
o
2
o
o
2
5
o
5
o
9
8
5
12
5
o
12
14
17
o
5
20
10
8
5
18
14
12
6
20