W83977EF Datasheet, PDF (135/150 Pages) Winbond – WINBOND I/O

W83977EF
12.0 TIMING WAVEFORMS
12.1 FDC
SA0-SA9
AEN
CS#
DACK#
IOR#
TAR
D0-D7
IRQ
Processor Read Operation
WD#
Write Date
TWDD
TRR
TFD
TRA
TDH
TDF
INDEX#
TR
Index
TIDX TIDX
SA0-SA9
AEN
DACK#
IOW#
TAW
D0-D7
IRQ
Processor Write Operation
Terminal Count
TWW
TDW
TWA
TWD
TWI
TC
TTC
Reset
RESET
TRST
DRQ
DACK#
IOW# or
IOR#
DMA Operation
TAM
TMA
TMCY
TAA
TMRW
TMW (IOW#)
TMR (IOR#)
Drive Seek operation
DIR#
TDST ^TSTP
STEP
TSTD
TSC
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Publication Release Date: April 2003
Revision 1.1