A3000/A4000 CPU slot pinout

[tnt23]

Where do I find one? Looking at my A3640 I cannot help but notice that pin 1 (marked as rectangular pad) is not physically first one. Looking through KEL docs only adds confusion.

[hese]

Have you looked here http://amiga.serveftp.net/A3000_INT2_mod.html?

[tnt23]

Originally Posted by hese

Have you looked here http://amiga.serveftp.net/A3000_INT2_mod.html?

Bingo! I have seen this site at least few times, but never thought of inspecting this very pic http://amiga.serveftp.net/images/A30...dJob-large.jpg

Thank you so much, strange pinout however

[ShK]

One thing still leads to confusion me. Here is Amiga 32 BIT Local Slot:



And I can see square of the PIN 1 on the A3640 board:



OK, but which is A3640 board’s pin number 2? Number 7? And so on…?

A3640 CPU Daughterboard
Amiga A3640_R3 Rev.1.37 (02.09.2012)
Amiga A3630 Rev.1.38 (10.09.2012)
The A3000 Local Bus Expansion Slot Specification
Processor Board Specification for the DoubleThink AT&T DSP3210 + MC68040 Processor Module
MC68040 DESIGNER'S HANDBOOK (Section 7 - 'MC68040 to MC68030 Bus Adapter Application')
Amiga A4000_Rb Rev.1.37 (02.09.2012) (page 12)

[hese]

Pin 1 is the square one, pin 2 is directly underneath it (near C letter), pin 3 is on the top left corner (near the huge '1') and pin 4 is directly underneath pin 3.
Simple

[ShK]

Like this:



etc...

[hese]

Just like that.

[tnt23]

I am doing a preliminary drawing of the connector. Attached is a bit of board seen from top with connector installed on the bottom side, as in real CPU cards.

From what I was able to verify, inner rows (1,5,9,13,... and 4,8,12,16,...) are kind of correct

[Hanzu]

Originally Posted by tnt23

I am doing a preliminary drawing of the connector. Attached is a bit of board seen from top with connector installed on the bottom side, as in real CPU cards.

From what I was able to verify, inner rows (1,5,9,13,... and 4,8,12,16,...) are kind of correct

How is that drawing of the connector doing?

If finished, would you kindly release that drawing of yours as a .png or jpg?

That would save plenty of time from doing pinout reference picture of my own.

Warp Engine cards have 2x 18 pin test points and they seem to go to CPU connector pins. To name what each test point "dot" connects to, a complete numbered (and possibly signal named) CPU connector picture from the top of any CPU card would certainly motivate me to conclude my Warp Engine research and share it.

[tnt23]

Hi Hanzu,

It has been a while I am afraid the drawing in question was done in PCad and I have since switched to KiCad suite. Let me browse through the archives and see if I still have the drawing.

[tnt23]

Here it is, split into 2 parts for better viewing.

[Chucky]

I was searching for pinout of the KEL connector from the CPU boards view.. found this old thread.. interesting that several have counted this and.. it seems wrong.. as if you take thenumbers like this EMUL and DSACK0 signals will be "not connected" while CLK90_EXP and _INT2 will be forced to GND...

IF I swap top and bottom row numbers it seems more ok!.. so anyone who can confirm this?

[kipper2k]

that is an unusual pinout numbering system, normally i have seen pin 1 in the first row and not the second. but if people say it is correct then all is good

[Chucky]

Yes the KEL connector swaps pins out on the other end so it is easy to confuse the numbering in the end and I am moving my A3640 project to Eagle and want all signals present that the 3640 doesn't use aswell. (for future use?)

on the motherboard side, it starts with row1 etc.

[Chucky]

Figured out how it is by measuring.. THIS is how it is for real:




(haha my illustration failed at 37.. but you get the point)