FORMAT
GCR
(NO
DIRECTORY)
BYTE
BIT 7 6
5
00 0
0
01
0 0 1
02
X X
X
03
M=O
04
IDLOW
05
IDHIGH
SWITCHES N---<lrive number
X--don't
care
PROTOCOL: Conventional
4
3
2
o
o
o
o o o o
X o N
CONVENTIONS: This command must be preceded by the INQUIRE DISK or QUERY
DISK FORMAT command to log in the diskette.
OUTPUT: None. The status
is
updated within the drive.
SECTOR
INTERLEAVE
BYTE BIT 7
6
5 4
00
0 0
01
0 0 1 1
02
W X X
0
04
INTERLEAVE
SWITCHES
W-write
switch
(0=
write)
N---<lrive number
X--don't
care
PROTOCOL: Burst handshake (W =
1)
3
0
0
2
0
0
0
0
0
0 0
N
CONVENTIONS: This
is
a soft interleave used for multi-sector burst READ and
WRITE.
OUTPUT: None (W = 0), Interleave burst byte (W =
1)
85
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