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[alexh]

I've looked at various video slot pin outs (found using Google) but non of them seem right.

http://www.amigau.com/natamiga/t-videoslot.shtml
http://www.titan.co.nz/Amigaak/AA060153.htm
http://www.l8r.net/technical/t-videoslot.shtml

All of them seem to be missing 6 signals:

Red bit 0
Red bit 1
Red bit 7
Green bit 7
Blue bit 4
Blue bit 7

Looking at the A4000 schematics page 9b, all 24-bits of digital RGB are available on the A4000 motherboard daughter card slot so why would there be missing signals on the video slot on the daughter card itself?

Does anyone have an official pinout or A4000 daughter card schematic that I could rely on?

[darksun9210]

hows this?

hardware book (NOT the amiga hardware book)

Pin Name Dir Description
1 RGB16 Red Bit 0
2 RGB17 Red Bit 1
3 LINELF Audio Line Out Left
4 LINERT Audio Line Out Right
5 C28D Pixel-Synchronous Clock
6 +5V - +5 Volts DC (1 A)
7 ARED Analog Red
8 +5V - +5 Volts DC (1 A)
9 GND Digital Ground
10 +12V - +12 Volts DC (40 mA)
11 AGREEN Analog Green
12 GND Digital Ground
13 GND Digital Ground
14 /CSYNC Composite Sync
15 ABLUE Analog Blue
16 /XCLKEN Genlock Clock Enable
17 GND Digital Ground
18 BURST Burst Gate
19 /C4 3.55/3.58 MHz Clock
20 GND Digital Ground
21 GND Digital Ground
22 /HSYNC Horizontal Sync (47 Ω)
23 RGB4 Blue Bit 4
24 GND Digital Ground
25 RGB7 Blue Bit 7
26 /VSYNC Vertical Sync (47 Ω)
27 RGB15 Green Bit 7
28 BLANK Video Blank
29 RGB23 Red 7
30 /PIXELSW Genlock Overlay (47 Ω)
31 -5V - -5 Volts DC
32 GND Digital Ground
33 /XCLK Genlock Clock
34 /C1 C1 Clock
35 +5V - +5 Volts DC (1 A)
36 PSTROBE Printer Port Handshake

1 GND Digital Ground
2 RGB20 Red Bit 4
3 RGB21 Red Bit 5
4 RGB22 Red Bit 6
5 GND Digital Ground
6 RGB12 Green Bit 4
7 RGB13 Green Bit 5
8 RGB14 Green Bit 6
9 GND Digital Ground
10 RGB5 Blue Bit 5
11 RGB6 Blue Bit 6
12 GND Ground
13 SOG Sync-On-Green Indicator
14 TBASE 50/60 Hz Software Clock Timebase
15 CDAC 7.09/7.16 MHz Clock
16 PPOUT Printer Port Paper Out
17 /C3 3.55/3.58 MHz Clock
18 PBUSY Printer Port Busy
19 /LPEN Light Pen Input
20 /PACK Printer Port Acknowledge Handshake
21 PSEL Printer Port Select
22 GND Digital Ground
23 PPD0 Printer Port Data Bit 0
24 PPD1 Printer Port Data Bit 1
25 PPD2 Printer Port Data Bit 2
26 PPD3 Printer Port Data Bit 3
27 PPD4 Printer Port Data Bit 4
28 PPD5 Printer Port Data Bit 5
29 PPD6 Printer Port Data Bit 6
30 PPD7 Printer Port Data Bit 7
31 /LED LED (Audio filter bypass) Setting
32 GND Digital Ground
33 RAWLF Raw (Unfiltered) Audio Left
34 AGND Audio Ground
35 RAWRT Raw (Unfiltered) Audio Right
36 AGND Audio Ground
37 n/c - Reserved for future expansion
38 n/c - Reserved for future expansion
39 GND Digital Ground
40 GND Digital Ground
41 n/c - Reserved for future expansion
42 n/c - Reserved for future expansion
43 GND Digital Ground
44 GND Digital Ground
45 RGB18 Red Bit 2
46 RGB19 Red Bit 3
47 RGB8 Green Bit 0
48 RGB9 Green Bit 1
49 RGB10 Green Bit 2
50 RGB11 Green Bit 3
51 RGB0 Blue Bit 0
52 RGB1 Blue Bit 1
53 RGB2 Blue Bit 2
54 RGB3 Blue Bit 3

[alexh]

Hmm, not sure. It says this is an A1000 connector and it most definitely isn't.

It matches up with the standard connector on the other sites (with extra signals on "Reserved" pins)

The odd one out seems to be this "extended video slot" on the original sources. Anyone know what this is?

Still waiting for some official documentation (if it exists).

[darksun9210]

i know its weird saying is an A1000 connecter, but then it says at the bottom that its sourced from the A4000 user guide? meh, either or. i'll keep looking see if i can confirm either way...

[alexh]

Ok, so if this is from A4000 User Guide (which I am trying to get hold of) then what is the 'Extended video slot' described on the regular websites?

Or am I missing something?

It would seem that the A4000 has a slightly modified 'standard video slot'.

Ah... maybe the Extended Video slot is another connector inline with standard? That would make sense.

I think I need to see what type of connectors it uses and what the A3000 slot looks like compared to A4000.

[darksun9210]

nope. i think i got it.

the standard video slot is two 36pin edge connectors as listed above, upto pin 36 of the second set of pins. A2000/A3000

the extended video slot is one 36 pin and one 54 pin edge connector, pins 37 to 54 being the extended bit. A4000/T

as far as i can figure out

[alexh]

Yeah that's what I came to.

The extended video port is in addition to standard video port, not instead of (which I should have realised from it's name!)

Strange that the same invalid information is reproduced all over the net and almost no-one has noticed before.

[darksun9210]

well the only cards i can think of off the top of my head, that actually use the extended video slots are the:-

Video toaster A4000
CV64/3D scandoubler module
PicassoIV

otherwise everything else just seems to use the standard video slots, so not much call for it i guess...

[Kronos]

darksun9210 wrote:
well the only cards i can think of off the top of my head, that actually use the extended video slots are the:-

Video toaster A4000
CV64/3D scandoubler module
PicassoIV

otherwise everything else just seems to use the standard video slots, so not much call for it i guess...

Just for completness sake

[darksun9210]

they don't make em like that anymore...

[alexh]

All video slot flicker fixers would need to use extended slot so the list is quite a bit bigger I feel.

A2320
Microway AGA-2000
Petsoff DblScan 4000
CompServ / Arxon Scandoubler
etc.
etc.

[Kronos]

I think you are confused, thats why I'm gonna make things worse :-P

The orginal video-slot was just one 36-pin-connector, and can be found in the A2000A. Very few cards were made for this.

The extended video-slot was a 2nd 36-pin-connector found in the A2000B and later in the A3000. All FF/SDs of that period (86-92) were made for it.

The AGA-video-slot repleced the 2nd 36-pin with a 54-pin-connector and can only be found in A4000s. AFAIk only cards designed for AGA-screenmodes&depths were made for it.

[alexh]

Erm, Kronos thanks. I think we'd already come to that conclusion but nice concise input.

What made the confusion worse was the fact that the websites I listed above, have mixed and matched data from A2000 and A4000 without noticing the changes!

The standard video slot connector pinout on these websites corresponds to a A2000. (Not even B2000 or A3000!)

The Extended video slot connector pinout however corresponds to an A4000! (You can tell by the numbering scheme of the digital video bits)

What were these changes? Several of the reserved (unused) pins on the A2000 standard video slot connector were reused on the B2000, A3000 for digital video (R,G,B bits 7). This continued with the A4000 which reused even more bits (RED bits 0 & 1, Blue bit 4).

Dont forget there were no digital RGB[0:3] on B2000/A3000 as they were only 12-bit.