W88113C Datasheet, PDF (89/102 Pages) Winbond – ATAPI CD-ROM DECODER & CONTROLLER

W88113C
5.3.5 Data-in Transfer Flowchart Example
start
HICTL(1Fh)
= 0Ch for PIO
= 08h for MDMA
= 09h for UDMA
ASCTRL(18h) = 44h or 74h
set TWCH/L(03h/02h)
set TACH/L(05h/04h)
set TBH/L(25h/24h)
set MBTC0(12h)
set ATBHI/LO(35h/34h)
ADTT(17h.2) = 1
return
data-in trigger
TENDb(01h.6) = 0
TDIR(30h.5)=1
A0 packet transfer
no
end routine
yes
FPKT(30h.1)=0
no
data-out transfer
end routine
yes
DHTACK(0Eh) = FFh
cache
management
UDMA &
UCRCOKb(30h.3)
yes
no
trigger status complete
with CHK
return
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Publication Release Date: Mar. 1999
Revision 0.61