24 December 2005, 12:38 | #1 |
Miggy Man
Join Date: Nov 2004
Location: Cornwall, United Kingdom
Age: 40
Posts: 831
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Pinouts
Can anyone help me? I am looking for pinouts of the following:
A500 Side expansion A500 Trapdoor A600 Trapdoor A500/500+/2000/CDTV 68000 CPU |
24 December 2005, 13:03 | #2 |
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A500 side expansion:
1 GND 2 GND 3 GND 4 GND 5 +5V 6 +5V 7 NC 8 -12V 9 NC 10 +12V 11 NC 12 GND (CFGOUT?!) 13 GND 14 /C3 15 CDAC 16 /C1 17 /OVR 18 XRDY 19 /INT2 20 NC 21 A5 22 /INT6 23 A6 24 A4 25 GND 26 A3 27 A2 28 A7 29 A1 30 A8 31 FC0 32 A9 33 FC1 34 A10 35 FC2 36 A11 37 GND 38 A12 39 A13 40 /IPL0 41 A14 42 /IPL1 43 A15 44 /IPL2 45 A16 46 /BERR 47 A17 48 /VPA 49 GND 50 EClock 51 /VMA 52 A18 53 /RST 54 A19 55 /HLT 56 A20 57 A22 58 A21 59 A23 60 /BR 61 GND 62 /BGACK 63 D15 64 /BG 65 D14 66 /DTACK 67 D13 68 R/W 69 D12 70 /LDS 71 D11 72 /UDS 73 GND 74 /AS 75 D0 76 D10 77 D1 78 D9 79 D2 80 D8 81 D3 82 D7 83 D4 84 D6 85 GND 86 D5 |
25 December 2005, 08:59 | #3 |
A-Collector, repairments
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26 December 2005, 19:50 | #4 |
Miggy Man
Join Date: Nov 2004
Location: Cornwall, United Kingdom
Age: 40
Posts: 831
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Thanks very much Chain, that is GREAT
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27 December 2005, 06:37 | #5 |
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Location: melbourne
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but doesn't include the pinouts for the A500 Trapdoor or A600 Trapdoor...
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27 December 2005, 14:52 | #6 |
Miggy Man
Join Date: Nov 2004
Location: Cornwall, United Kingdom
Age: 40
Posts: 831
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Those prove difficult to find unfortunately
Also looking for A1200 clockport pinout too now |
28 December 2005, 06:57 | #7 |
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From usenet:
Code:
================================================ A600 Trapdoor Expansion Connector Pinouts ================================================ mapped by Bruce Abbott (bhabb...@inhb.co.nz) ExRAM pin designation Description --------- ----------- ----------- 1-2 +5V +5 volt power supply 3-4 GND ground 5-20 DRD0-15 DRAM data bus 21-22 GND ground 23-31 DRA0-8 DRAM address bus 32 nc 33-34 ??? internal chipram strobes? 35 CASL DRAM Column Address Strobe, lower 36 CASU DRAM Column Address Strobe, upper 37 RAS0 DRAM Row Address Strobe 0 38 RAS1 DRAM Row Address Strobe 1 39 /WE DRAM Write Enable 40 /ROE DRAM Output Enable 41-48 RGA8-1 Custom Chip Register Address bus 49-56 D0-D7 CPU data bus 57-60 A1-A4 CPU address bus 61 /NETCS ??? spare I/O select ? (Gayle pin 14) 62 /SPARECS ??? spare I/O select ? (Gayle pin 15) 63 /INT2 level 2 Interrupt Request 64 /INT6 level 6 Interrupt Request 65 LAUD left audio output from Paula 66 RAUD right audio output from Paula 67 14M 14.3 Mhz system clock 68 nc 69 CCK color clock (3.58Mhz) 70 /BRESET buffered reset 71 /IOR I/O read for Real Time Clock 72 /IOW I/O write for Real Time Clock 73 /RTC_CS Real Time Clock Chip Select 74 nc 75 ??? grounded via a 470 Ohm resistor 76 +5V +5 volt power supply 77-78 GND ground 79 +12V +12 volt power supply 80 -12V -12 volt power supply note: nc = no connection |
31 December 2005, 23:15 | #8 |
Miggy Man
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Location: Cornwall, United Kingdom
Age: 40
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Thanks to you too
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10 January 2006, 01:25 | #9 |
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I couldn't even imagine what you'd need to know to be able to use those pinouts to make something. I've even taken several circuit design/theory classes at college and still would have no idea what to do with this information. Anyone want to give an example of what you can make if you knew the pinouts, obviously you can't make your own accelerator boards, but what simple hardware can be made?
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10 January 2006, 10:12 | #10 |
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Join Date: Jul 2003
Location: Helsinki / Finland
Age: 43
Posts: 9,861
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Make your own non-autoconfig RAM board to plug into the amigabus connector?
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12 February 2018, 02:52 | #11 |
Zone Friend
Join Date: Mar 2004
Location: Middle Earth
Age: 40
Posts: 2,127
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Hi.
Any one know what the LAudio and RAudio is used for on the Amiga 600 expansion?? Does it mean you could put a DSP chip in the expansion port? What about the 14mhz clock?? Thanks in advance. |
12 February 2018, 19:49 | #12 |
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All port, expansion, chip, and external socket pinouts are pretty clear in the schematics for each model:
http://www.amigawiki.de/doku.php?id=...ice:schematics |
12 February 2018, 20:02 | #13 |
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The 14MHz_A signal is output directly from Agnus, which will be the master clock frequency divided by two (so not exactly 14MHz, but close).
So basically a separate system clock that may or may not be 180 deg out of phase from the clock the rest of the chips use. Left and Right are audio outputs. They might be dead ends at the connector, you’d have to check the actual PCB for that. Some models also have upper address bits labelled at expansion connectors which don’t actually go anywhere. |
13 February 2018, 10:36 | #14 |
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@Techx
Yep, memory expansions similar to the original ones back in the day are probably the most obvious use. Perhaps the simplest device you could make for each is based around the RTC or clock port: - A500 trapdoor: Real-time clock. One chip and a few other components are all that's needed. - A600 trapdoor: As above for the RTC, but also an A1200-style clock port should be possible using nothing but the required connectors and a board. This would enable the connection of various other peripherals. - 68000 socket: Accelerators are more complicated, but fast RAM boards are simple enough. Simpler still is the addition of a clock port, though it's more complicated than the A600 trapdoor version because the A500 lacks some necessary signals. Reconstructing these signals (and dealing with the CPU bus) takes a few logic chips, but is simple enough. - A500 side slot: Basically anything including all of above. A simple project is an add-on Zorro-II slot that lets you connect a Zorro card to the A500. Just requires one chip and a few other parts. I think if you're looking to start designing peripherals however, perhaps have a look at something more straightforward, like a relay board for the parallel port or something like that. This should get your mind ticking over with possibilities without requiring too much in the way of dealing with RAM, chip selects and other such things. |
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