LPC47M140-NC SMSC [SMSC Corporation], LPC47M140-NC Datasheet - Page 186

• Manufacturer Part Number: LPC47M140-NC
• Description: 128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
• Manufacturer: SMSC [SMSC Corporation]

SMSC DS – LPC47M14X
*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 DS0 &DS1 setup and hold times must be met by software.
nWDATA
nRDATA
nINDEX
nDS0-1
nSTEP
NAME
nDIR
t1
t2
t3
t4
t5
t6
t7
t8
t9
nDIR Set Up to STEP Low
nSTEP Active Time Low
nDIR Hold Time after STEP#
nSTEP Cycle Time
nDS0 & nDS1 Hold Time from nSTEP Low (Note)
nINDEX Pulse Width
nRDATA Active Time Low
nWDATA Write Data Width Low
nDS0 & nDS1, Setup Time nDIR Low (Note)
FIGURE 27 – FLOPPY DISK DRIVE TIMING (AT MODE ONLY)
t9
t1
DESCRIPTION
t6
t7
t8
t2
Page 186
t4
MIN
0
t3
t5
TYP
132
24
96
20
40
.5
4
2
MAX
UNITS
X*
X*
X*
ns
Y*
ns
X*
X*
X*
Rev. 03/19/2001