GDFeCfjkXkXkXkXkXkX@kXxx@kXkXkXhhkXXXkXHH@kxXX@kxHHkx88kx((kxkxkxkxkxkx@kxkx@kxkxxxkxhhqHkvArial,8 v/Apple II IDE/CompactFlash Drive Interface LogicqHkvArial,8\vGto reset the "Expansion ROM select flip-flop" which disables the EPROM.qH kvArial,8 vLspace at $C800 to $CEFF. Any address in the range $CF00 to $CFFF is decodedqH0kvArial,81 v<each I/O slot, $C100, $C200.... $C700, and the expansion ROMqH@kvArial,8v`The EPROM is mapped into Address $C000, but only decoded from $C100 to $CEFF allowing code for qHPkvArial,8v,Support for 27C256 EPROM - Chip select logicqHpkvArial,8 viand the Apple II specific design of Stephane Guillard - http://s.guillard.free.fr/Apple2IDE/Apple2IDE.htmqHkvArial,8 vnInspired by article "IDE Hard Disk Interface for 8-bit Controllers" in Elektor Electronics Magazine-March 2001qHkvArial,8 v-Project Home: http://dreher.net/CFforAppleII/qHkvArial,8v>See appleidelogic.tdf file for logic and its revision history.gfjk\uk\ u @kyl\\ mu y@muyqHv1pqnvArial,6 vINPUTrphq9vArial,6 vVCCq)fvArial,6 v21qyvArial,85v -DevSelectqHv1r@hq9vArial,6 vVCCq)fvArial,6 v131qyvArial,8v7MclkqHv1r`hq9vArial,6 vVCCq)fvArial,6 v71qyvArial,81v -I/OStrobeqHv1rPhq9vArial,6 vVCCq)fvArial,6 v70qyvArial,8/v -I/OSelectqHv1rhq9vArial,6 vVCCq)fvArial,6 v72qyvArial,8vA8qHv1rhq9vArial,6 vVCCq)fvArial,6 v20qyvArial,8vR/WqHv1rhq9vArial,6 vVCCq)fvArial,6 v74qyvArial,8vA10qHv1rhq9vArial,6 vVCCq)fvArial,6 v73qyvArial,8vA9qHv1rhq9vArial,6 vVCCq)fvArial,6 v16qyvArial,8vA0qHv1rhq9vArial,6 vVCCq)fvArial,6 v19qyvArial,8vA3qHv1rhq9vArial,6 vVCCq)fvArial,6 v18qyvArial,8vA2qHv1rhq9vArial,6 vVCCq)fvArial,6 v17qyvArial,8vA1qHv1gfjk4k4 N k4Nl44 mN RmRNmNRqHv1pqnvArial,6 vOUTPUTrPhq)fvArial,6 v142qZyvArial,82vCS_MASKqHv1rhq)fvArial,6 v29qZyvArial,8v-CS0qHv1rhq)fvArial,6 v30qZyvArial,8v-CS1qHv1rhq)fvArial,6 v108qZyvArial,8.vDBUS245qHv1rhq)fvArial,6 v102qZyvArial,8,vW_HOSTqHv1rhq)fvArial,6 v101qZyvArial,8*v-W_ATAqHv1rhq)fvArial,6 v27qZyvArial,8v-IOWRqHv1rhq)fvArial,6 v28qZyvArial,8v-IORDqHv1rhq)fvArial,6 v103qZyvArial,8#vR_ATAqHv1rhq)fvArial,6 v104qZyvArial,8-v-R_HOSTqHv1r0hq)fvArial,6 v144qZyvArial,8vLA1qHv1r hq)fvArial,6 v145qZyvArial,8vLA2qHv1r@hq)fvArial,6 v146qZyvArial,8vLA0qHv1r`hq)fvArial,6 v135qZyvArial,8/vNOT_R/WqHv1rphq)fvArial,6 v87qZyvArial,8:v -EPROM_ENqHv1gfjpxkxpx@k`p`@kHpHk0p0kpkpl0@llxlppxl[[0qnnvArial,6 vTITLEqV&vArial,6+ vCOMPANYq>&vArial,6) vDESIGNERq&&vArial,6 vSIZEq]%&vArial,7* vNUMBERq$&vArial,7 vREVq &vArial,6 vDATEq"&vArial,6 vSHEETq$@&vArial,6 vOFr`hq)fvArial,6 v49q)9vArial,10 vCqC9vArial,10 vAq%X9vArial,10v1q!#9vArial,10hv10:10p 4-23-2005q9vArial,10v1.4q#'9vArial,10v1q8d9vArial,12v$Apple II IDE/CompactFlash Interfaceq8L9vArial,12uvR&D Automationq849vArial,12vRichard Dreher & Chris Schumanngfjkk@k@kkkkk@kkxxkhhkXXkHHk88@kkkkkk@kkkxxkhhkXX@kHH@k88k((kllqnv appleidelogicqhvA0pqhvA1pqhvA2pqhvA3pqhvA8pqhvA9pqhvA10pqshv/RWpxqchv/DSELphqShv/IO_STRBpXqChv/IO_SELpHq3hv7Mclkp8qphv/R_HOSTpqhvR_ATApqxhvW_HOSTpqxhv/W_ATApqhv/IOWRpqhv/IORDpqhv/CS0pqhv/CS1pqhshv/DBUS245pxq`chv /EPROM_ENphqxShvNOT_RWpXqpChvCS_MASKpHq3hvLA0p8q#hvLA1p(qhvLA2prhq)fv147qhvA0qhvA1qhvA2qhvA3qhvA8qhvA9qhvA10qshv/RWqchv/DSELqShv/IO_STRBqChv/IO_SELq3hv7Mclkqphv/R_HOSTqhvR_ATAqxhvW_HOSTqxhv/W_ATAqhv/IOWRqhv/IORDqhv/CS0qhv/CS1qhshv/DBUS245q`chv /EPROM_ENqxShvNOT_RWqpChvCS_MASKq3hvLA0q#hvLA1qhvLA2t