
Apple II Computer Info
u 3: Selection phase time out delay....I believe this sets how long the
card waits for the drive to come up to speed(?)...manual shows the
default as having 4, 5, and 7 with jumpers installed
u 4: Arbitration phase time out delay....manual shows default as no
jumpers installed
u 5: Bus Free phase time out delay...manual shows default as jumper on
number 1
u 6: Interrupt recovery delay....manual shows jumpers on 3, 4, and 5
j1 and j2 are single sets of pins....the manual says J2 is not used, but
J1 is to be jumpered.
.........................................................................
The card I have here, came out of a IIGS where it was hooked to first a
twenty meg CMS drive, and later a forty meg CMS drive. It has the following
jumpers set:
u1: jumper on 7
u2: no jumpers
u3: jumpers on 4, 5, and 7
u4: no jumpers
u5: jumper on 1
u6: jumpers on 3, 4, and 5
j2: no jumper
j1: jumper
As I recall, this setup yeilded a rather long pause for the hard disk to
come up to speed (about 40 to 45 seconds) that we found necessary at the
time to avoid boot problems.
Good luck....
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### CMS.scsi
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Apple II Computer Technical Information : Apple II Family Hardware Info
ftp://ground.ecn.uiowa.edu/2/apple2/miscinfo/hardware : May 2001 : 70 of 572
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