LPC47M182 SMSC Corporation, LPC47M182 Datasheet - Page 70

• Manufacturer Part Number: LPC47M182
• Description: ADVANCED I/O CONTROLLER WITH MOTHERBOARD GLUE LOGIC
• Manufacturer: SMSC Corporation

Revision 1.8 SMSC/Non-SMSC Register Sets (02-24-05)
GPL1 = suggested GPL values in Read and Write commands to avoid splice point between data field and
GPL2 = suggested GPL value in Format A Track command.
*PC/AT values (typical)
**PS/2 values (typical). Applies with 1.0 MB and 2.0 MB drives.
Note:
GAP4a
GAP4a
GAP4a
80x
40x
80x
4E
FF
4E
ID field of contiguous sections.
All values except sector size are in hex.
SYNC
SYNC
SYNC
12x
12x
00
6x
00
00
5.25” Drives
3.5” Drives
C2
C2
3x
3x
IAM
IAM
IAM
FC
FC
FC
GAP1
GAP1
GAP1
50x
26x
50x
4E
FF
4E
Table 6.24 - Typical Values for Formatting
SYSTEM 3740 (SINGLE DENSITY) FORMAT
SYSTEM 34 (DOUBLE DENSITY) FORMAT
SYNC
SYNC
SYNC
12x
12x
00
00
00
6x
A1
A1
3x
3x
PERPENDICULAR FORMAT
IDAM
IDAM
IDAM
DATASHEET
FE
FE
FE
FORMAT FIELDS
C
C
C
Y
L
Y
L
Y
L
H
D
H
D
H
D
FORMAT
S
E
C
S
E
C
S
E
C
MFM
MFM
70
FM
FM
N
O
N
O
N
O
C
R
C
C
R
C
C
R
C
GAP2
GAP2
GAP2
22x
11x
41x
4E
FF
4E
SECTOR SIZE
512**
SYNC
SYNC
SYNC
1024
2048
4096
1024
2048
4096
1024
512*
128
128
512
256
256
128
256
512
256
12x
12x
00
6x
00
00
...
...
Advanced I/O Controller with Motherboard GLUE Logic
A1
A1
3x
3x
DATA
DATA
DATA
FB or
AM
AM
AM
F8
FB
FB
F8
F8
00
00
02
03
04
05
01
01
02
03
04
05
...
...
N
0
1
2
1
2
3
DATA
DATA
DATA
SC
12
10
08
04
02
01
12
10
09
04
02
01
0F
09
05
0F
09
05
C
R
C
C
R
C
C
R
C
GAP3 GAP 4b
GAP3 GAP 4b
GAP3 GAP 4b
GPL1
C8
C8
0A
2A
C8
C8
0F
1B
0E
1B
07
10
18
46
20
80
07
35
SMSC LPC47M182
GPL2
FF
FF
0C
F0
FF
FF
1B
2A
3A
09
19
30
87
32
50
36
54
74
Datasheet