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Re: Anybody aware of the description of a 19pin connector of an Apple 5.25 Disk Drive ?
- Subject: Re: Anybody aware of the description of a 19pin connector of an Apple 5.25 Disk Drive ?
- From: Michael J. Mahon <mjmahon@aol.com>
- Date: Sun, 05 May 2013 03:39:55 -0500
- Bytes: 2490
- Newsgroups: comp.sys.apple2
- References: <51856afe$0$9508$9b4e6d93@newsspool1.arcor-online.net> <km4iig$87m$1@dont-email.me> <51860b3c$0$6635$9b4e6d93@newsspool2.arcor-online.net>
- User-agent: NewsTap/4.0.1 (iPhone/iPod Touch)
Peter Dassow <z80eu@arcor.de> wrote:
> On 05.05.2013 05:13, Mark Frischknecht wrote:
>> On 2013-05-04 20:09:22 +0000, Peter Dassow said:
>>
>>> Hi,
>>>
>>> still looking for a description of the 19pin connector (each pin) of
>>> an Apple 5.25" Disk Drive (A9M0107) .... where to find ?
>>>
>>> Regards
>>> Peter
>>
>>
>> GND 1 GND 2
>> GND 3
>> GND 4
>> -12V 5
>> +5V 6
>> +12V 7
>> +12V 8
>> EXTINT 9 ACK 10
>> REQ 11
>> PH1 12
>> PH2 13
>> PH3 14
>> WREQ 15
>> (NC) 16
>> DRVEN 17
>> RDDATA 18
>> WRDATA 19
>
> Ok, thx, are these signals barely just signals from a floppy drive
> shugart bus ? I mean can I take a non-Apple floppy disk drive like a TEAC
> FD55A drive, and "wire" it in an appropriate way to a 19pin connector ?
Not at all.
They are signals from an Apple Disk ][, which has a much lower-level
interface than the SA390/SA400 from which the Disk ][ was derived by
throwing out the digital control circuitry of the standard product and
leaving only a simplified analog board.
-michael - NadaNet 3.1 and AppleCrate II: http://home.comcast.net/~mjmahon