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Hydra
Joined: 04 Jul 2010
Posts: 1
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 Posted: Sun Jul 04, 2010 9:42 pm Post subject: Super Magic Griffin PC Engine FDD Pinouts |
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I took apart my SMG today and did this for you all:
34 Pin IDC to 25 Pin Female D-Sub floppy drive pin mapping for Magic Super Griffin (and probably MGD2, etc)
I cracked open my Magic Super Griffin today after finding an old external floppy drive (FDD) that I wanted to hook up to it. I was expecting to have to look at chip pinouts and signals to figure out which pins were which on the 25-pin connector but to my surprise there was space on the motherboard for a 34pin IDC connector. So the signals can and pinout could be taken directly from that. The FDD controller chip on the SMG, for reference, is a socketed (!) Motorola MCS3201FN - http://www.datasheetarchive.com/pdf-datasheets/Datasheets-111/DSAP0039438.html. The datasheet reveals that the controller can handle up to 1.4M drives too.
| Code: | \ 13 12 11 10 09 08 07 06 05 04 03 02 01 /
\ 25 24 23 22 21 20 19 18 17 16 15 14 / |
The pins above are taken looking directory at the female pin (cable) side of the D-Sub connector.
The pins of the IDC connector are numbered from left to right, vertically, from the component side of the board.
| Code: | 01 02
03 04
…
33 34 |
The pin mapping is thus:
| Code: | D-Sub - IDC - Signal
01 - 01,03,...,33 - GND
02 - 08 - /INDEX
03 - 26 - /TRK00
04 - 28 - /WPT
05 - 30 - /RDATA
06 - 34 - /DSKCHG
07 - NC - NC
08 - NC - +5V
09 - NC - NC
10 - NC - NC
11 - 16 - /MOTEB
12 - 22 - /WDATA
13 - 24 - /WGATE
14 - 02 - /REDWC
15 - 32 - /SIDE1
16 - 18 - /DIR
17 - 20 - /STEP
18 - 01,03,...,33 - GND
19 - 01,03,...,33 - GND
20 - 01,03,...,33 - GND
21 - 01,03,...,33 - GND
22 - 01,03,...,33 - GND
23 - 01,03,...,33 - GND
24 - 01,03,...,33 - GND
25 - 01,03,...,33 - GND
Shield - 01,03,...,33 - GND |
With the above information I'm now able to make a suitable cable to connect up any standard PC floppy disk drive. I don't know which model drives are actually compatible. Though I would suggest checking out the Datasheet for the FDD controller chip. If you have any success please let me know so I can share the information with others.
BTW, If you didn't know already a Super Magic Griffin is a PC Engine console backup unit. With it you can load dumped ROM images into the SMG and then run them on your PC Engine console. The unit is basically a ROM emulator with FDD and Parallel I/O connections. They were manufactured by Front Fareast Co. Ltd. (Taiwan).
I also posted this on my blog, here: http://dominicclifton.name/blog/2010/07/04/1278278823580.html
Enjoy! |
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CrackLtd
Joined: 05 Feb 2007
Posts: 239
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| Posted: Thu Jul 08, 2010 6:59 am Post subject: |
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| Yea, the same external drives where used with the SMD800 and the Super Magicom. So, your cable will work with those Copiers too. |
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