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- Path: classic.iinet.com.au!news
- From: "G.Taylor" <carinehs@vianet.net.au>
- Newsgroups: comp.sys.amiga.hardware
- Subject: A500-A570 CD SCSI?
- Date: Wed, 24 Jan 1996 21:14:16 +0800
- Organization: Carine Senior High School
- Message-ID: <310630A8.7FFD@vianet.net.au>
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-
- I have an A500 with an A570 CD unit attached to the expansion bus on the
- side. I use this as a 'slave' via parnet to my A3000 so I can access CDs.
- The A570 was got for a song and the A500 was my original Amiga which had an
- ADDIDE board under the CPU and a Quantum HD.
- Unfortunately, the A570 has a SCSI interface which meant I had to unplug the
- IDE interface and HD in order to allow the A570 to boot.
-
- I have several questions someone may be able to help me with..
-
- 1) Is there a workaround, given the IDE / SCSI conflict?
-
- 2) Can you simply connect a SCSI HD using the following ?
- (In other words, is this pin allocation correct?)
- ++++++++++++++++++++++++++++++++++++++++++++++
- SCSI 50 way pins A570 Expansion contacts
- #2 data0 ---------------- # 8 data0
- #4 data1 ----------------- #21 data1
- #6 data2 ----------------- #22 data2
- #8 data3 ----------------- #10 data3
- #10 data4 ----------------- #23 data4
- #12 data5 ----------------- #11 data5
- #14 data7 ----------------- #12 data6
- #16 parity ---------------- #13 data7
- #18 Ground ---------------- #20 Ground
- #20 Ground ---------------- #14 Ground
- #22 Ground ---------------- #16 Ground
- #24 Ground ---------------- #18 Ground
- #26 Termination Power------ #25 Termination Power
- #28 Ground ---------------- #24 Ground
- #30 Ground ---------------- #24 Ground
- #32 ATN ------------------- #17 ATN
- #34 N.C.
- #36 BSY ------------------- # 6 BSY
- #38 ACK ------------------- # 5 ACK
- #40 RST ------------------- # 4 RST
- #42 MSG ------------------- # 2 MSG
- #44 SEL-------------------- #19 SEL
- #46 C/D ------------------- #15 C/D
- #48 REQ ------------------- # 1 REQ
- #50 I/O ------------------- # 3 I/O
- ALL ODD GROUND
- PIN 25 OPEN
- ++++++++++++++++++++++++++++++++++++++++++++++
-
- Any suggestions would be greatfully received
- Geoff Taylor
- ===========================================================================Science department "May the groundtruth be with you"
- Carine Senior High School (Motto of the Aus branch of the )
- CARINE 6020 ( GLOBE environmental program )
- Western Australia (Global Observations to Benefit Earth)
- ===========================================================================
-