FDC37N769_07 SMSC [SMSC Corporation], FDC37N769_07 Datasheet - Page 50

• Manufacturer Part Number: FDC37N769_07
• Description: 3.3V Super I/O Controller with Infrared Support for Portable Applications
• Manufacturer: SMSC [SMSC Corporation]

formatting continues for the whole track until the FDC encounters a pulse on the IDX pin again and it terminates the
command.
Table 44 contains typical values for gap fields which are dependent upon the size of the sector and the number of
sectors on each track. Actual values can vary due to drive electronics.
SMSC DS – FDC37N769
GAP4
GAP4
GAP4
80x
40x
80x
4E
FF
4E
a
a
a
SYN
SYN
SYN
12x
12x
00
6x
00
00
C
C
C
C2
C2
3x
3x
IAM
IAM
IAM
FC
FC
FC
GAP
GAP
GAP
50x
26x
50x
4E
FF
4E
1
1
1
SYSTEM 3740 (SINGLE DENSITY) FORMAT
SYSTEM 34 (DOUBLE DENSITY) FORMAT
SYN
SYN
SYN
12x
12x
00
00
00
6x
C
C
C
DATASHEET
3x
3x
IDAM C
IDAM C
IDAM C
A
A
1
1
Table 43 - FORMAT FIELDS
PERPENDICULAR FORMAT
FE
FE
FE
Y
Y
Y
L
L
L
Page 50 of 137
H
D
H
D
H
D
C
C
C
S
E
S
E
S
E
N
O
N
O
N
O
C
R
C
C
R
C
C
R
C
GAP
GAP
GAP
22x
11x
41x
4E
FF
4E
2
2
2
SYN
SYN
SYN
12x
12x
00
00
00
6x
C
C
C
A1
A1
DATA
3x
DATA
DATA
3x
FB or
AM
AM
AM
F8
FB
F8
FB
F8
DAT
DAT
DAT
A
A
A
C
R
C
C
R
C
C
R
C
GAP
GAP
GAP
3
3
3
GAP
GAP
GAP
4b
4b
4b
Rev. 02-16-07