W83977F Datasheet, PDF (166/181 Pages) Winbond – PLUG & PLAY 1.0A COMPLIANT

12. TIMING WAVEFORMS
12.1 FDC
W83977F/ W83977AF
PRELIMINARY
SA0-SA9
AEN
CS
DACK
IOR
TAR
D0-D7
IRQ
Processor Read Operation
Write Date
WD
TWDD
TRR
TFD
TRA
TDH
TDF
Index
INDEX
TR
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: March 1998
Revision 0.58