LPC47M112 SMSC Corporation, LPC47M112 Datasheet - Page 33

• Manufacturer Part Number: LPC47M112
• Description: ENHANCED SUPER I/O CONTROLLER WITH LPC INTERFACE
• Manufacturer: SMSC Corporation

Enhanced Super I/O Controller with LPC Interface
Datasheet
Drive Rate Table (Recommended)
Note 1: The DRATE and DENSEL values are mapped onto the DRVDEN pins.
SMSC DS – LPC47M112
DT1
0
1
0
1
DT0
0
0
1
1
Table 10 - Default Precompensation Delays
00 = 360K, 1.2M, 720K, 1.44M and 2.88M Vertical Format
01 = 3-Mode Drive
10 = 2 Meg Tape
DRVDEN1 (1)
DRATE0
DRATE0
DRATE0
DRATE1
DATA RATE
500 Kbps
300 Kbps
250 Kbps
2 Mbps
1 Mbps
Table 9 - DRVDEN Mapping
DATASHEET
Page 33
DRVDEN0 (1)
PRECOMPENSATION
nDENSEL
DENSEL
DRATE1
DRATE0
DELAYS
41.67 ns
20.8 ns
125 ns
125 ns
125 ns
4/2/1 MB 3.5"
2/1 MB 5.25" FDDS
2/1.6/1 MB 3.5" (3-MODE)
PS/2
DRIVE TYPE
Rev. 02/02/2005