LPC47M112 SMSC Corporation, LPC47M112 Datasheet - Page 187
LPC47M112
Manufacturer Part Number
LPC47M112
Description
ENHANCED SUPER I/O CONTROLLER WITH LPC INTERFACE
Manufacturer
SMSC Corporation
Datasheet
1.LPC47M112.pdf
(208 pages)
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Enhanced Super I/O Controller with LPC Interface
Datasheet
SMSC DS – LPC47M112
*X specifies one MCLK period and Y specifies one WCLK period.
MCLK = 16 x Data Rate (at 500 kb/s MCLK = 8 MHz)
WCLK = 2 x Data Rate (at 500 kb/s WCLK = 1 MHz)
Note: The nDS0-1 setup and hold times must be met by software.
NAME
t1
t2
t3
t4
t5
t6
t7
t8
t9
nWDATA
nRDATA
nINDEX
nDS0-1
nSTEP
nDIR
nDIR Set Up to STEP Low
nSTEP Active Time Low
nDIR Hold Time after nSTEP
nSTEP Cycle Time
nDS0-1 Hold Time from nSTEP Low (Note)
nINDEX Pulse Width
nRDATA Active Time Low
nWDATA Write Data Width Low
nDS0-1, Setup Time nDIR Low (Note)
FIGURE 17 – FLOPPY DISK DRIVE TIMING (AT MODE ONLY)
t9
DESCRIPTION
t1
t6
t7
t8
Page 187
t2
t4
MIN
0
t3
t5
TYP
132
24
96
20
40
.5
4
2
MAX
UNITS
X*
X*
X*
X*
X*
ns
Y*
ns
X*
Rev. 02/02/2005
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