USB97CFDC2-MV-01X SMSC [SMSC Corporation], USB97CFDC2-MV-01X Datasheet - Page 18

• Manufacturer Part Number: USB97CFDC2-MV-01X
• Description: USB Floppy Disk Controller
• Manufacturer: SMSC [SMSC Corporation]

SMSC DS – USB97CFDC2-01
*X specifies one MCLK period and Y specifies one WCLK period.
MCLK = 16x Data Rate (at 500 Kbp/s MCLK = 8 MHz)
WCLK = 2x Data Rate (at 500 Kbp/s WCLK = 1 MHz)
NAME
t1
t2
t3
t4
t5
t6
t7
t8
nWDATA
nRDATA
nINDEX
nDS0
nSTEP
nDIR
nDIR Set Up to nSTEP Low
nSTEP Active Time Low
nDIR Hold Time After nSTEP
nSTEP Cycle Time
nDS0-1 Hold Time from nSTEP Low
nINDEX Pulse Width
nRDATA Active Time Low
nWDATA Write Data Width Low
PARAMETER
t1
FIGURE 3 - DISK DRIVE TIMING
DATASHEET
t7
t8
t6
Page 18
t2
MIN
t4
TYP
132
t3
24
96
20
40
.5
t5
4
2
MAX
UNITS
X*
X*
X*
X*
X*
X*
ns
Y*
Rev. 02-27-07