Schematics Needed!!!

Zetr0 · 02 July 2008, 17:28

Hell there my fellow forum chummies

I do so need your help

I have been having much chin-waggery with my some partners in the "arcane circle of hackery", about building a 2MB chip mod for the A500 / A2000 project codename = "Chip Wizard 2MB"

My Plan is to use a Super Agnus (8375), from a dead A600 (thanks Merlicious), these can also be found on A500+'s, in a very similar way to the Mini Megi Chip

click to enlarge (thanks to amiga.resource.cx)

As you may know the Super Agnus 8375 -390544-01 is not PIN compatible with the 83-71/73B and 75B variants, however with simple logic its possible to interface this with the A500 / A2000

So... whats the problem I hear you ask.... and "Get on with it" from the back.... well.... I have my eye on you Akira

Well the Schematics I have of the A500 8730/1 and the A600 8735 are too poor quality for my eyes to REALLY make out...

I need the A500 schematic for the Agnus 8370/1 and GARY chips, as well as their routed path. I also need the pin out schematic for the 8375 Super Agnus as well..

I would be a humbled and appreciative Zetr0 if you can help

TheCorfiot · 02 July 2008, 17:35

Zetro,

I have a Real copy of the Commodore A500 / + Service manual covers all revisions of the Board & full size fold out schematics includes memory cards.
I Also Have the same Regarding the A1200

Would you like a borrow????

Can post it to you.
Finally ..... I'm giving something Back

TC

Zetr0 · 02 July 2008, 17:39

I would LOVE to borrow it my friend,

I shall SCAN it too

Muchooos appreciated my friend!!!! let me know on the postage.... books arn't cheap to post!!!!

TheCorfiot · 02 July 2008, 17:43

Zetro....

You are of course welcome.

I need to post you for the A2088 & NIC so I will disguise the package so it won't look like a book. Will get wifey to post tomorrow for you.

Yes Royal Fail do charge a premium for sending Reading Material

Pleasure to help, don't forget I want one of these upgrades too

TC

TheCorfiot · 02 July 2008, 23:24

Just got Home & reviewed my A500 manual,

It does not contain info regarding the 8375 AGNES, everything else but that.
I'm still sending my Manual to the ZedMan as it will still help towards his project,

But Please guys if anyone can help our bearded guru regarding the 8375 then please don't be shy

Many Thanks

TC

Zetr0 · 03 July 2008, 00:32

@TC

my friend, I do so appreciate your help

I believe that the A500, has the Agnus listed as the 8370 or 8371... chip [U2] "Fat Agnus" a detailed pin out of this is sorely needed.

this and the GARY chip [U5].

any help much appreciated

rkauer · 03 July 2008, 03:54

Try this.

The image (in original size) is acceptable.

TheCorfiot · 03 July 2008, 10:17

Quote:

Originally Posted by Zetr0

@TC

my friend, I do so appreciate your help

I believe that the A500, has the Agnus listed as the 8370 or 8371... chip [U2] "Fat Agnus" a detailed pin out of this is sorely needed.

this and the GARY chip [U5].

any help much appreciated

Zetro, My schematics have full pinout & circuit for both those Revision devices so thats covered for you

Wifey is putting the Manual in the post for you this AM along with some ahem additional...

8375 details required now. Help everyone pls...

I'm really so glad to help you out oh bearded one.

Best Wishes
TC

Zetr0 · 03 July 2008, 11:38

This is awsome....

i really appreciate your help guys!!!!

Code:

8375 "Super Agnus" 390544 - 01 Pinout Configuration

pin#		#desc

01		DRD13
02		DRD12
03		DRD11
04		DRD10
05		DRD09
06		DRD08
07		DRD07
08		DRD06
09		DRD05
10		DRD04
11		DRD03
12		DRD02
13		DRD01
14		DRD00
15		
16		_RESET
17		_INTR
18		DMAL
10
20
21		_WE
22
23
24		_AS
25		RGA8
26		RGA7
27		
28		RGA6
29		RGA5
30		RGA4
31		RGA3
32		RGA2
33		RGA1
34		28MHZ
35
36		_CDAC
37		7MHZ
38		CCKQ
39		CCK
40		14MHZ
41
42		DRA0
43		DRA1
44		DRA2
45		DRA3
46		DRA4
47		DRA5
48		DRA6
49		DRA7
50		DRA8
51
52
53
54
55		DRA9
56		_RAS1
57		_RAS0
58
59
60
61		_LOG
62		_WOG
63		_CASL
64		_CASU
65		
66
67		
68
69
70
71
72
73
74
75
76
77
78		_LPEN
79		_VSYNC
80		_CSYNC
81		_HSYNC
82
83
84

The above is what I have managed to document from the pages that rkauer sent me and what I have here...

as one can see... theres stuff missing LOL mainly vcc/vss/vdd etc

Toni Wilen · 03 July 2008, 11:39

Quote:

Originally Posted by Zetr0

8375 Agnus

Useless without part numbers

There are multiple 8375 Agnus versions with different part numbers and most likely different pinout.

Zetr0 · 03 July 2008, 11:40

sorry Toni,

LOL it was after i had posted it figured... hand on thers about 4/5 versions of that chip in A and B varients too LOL

Zetr0 · 03 July 2008, 11:57

Here is another 2MB chip upgrade variant

The MegiChip from CP Germany [thanks to amiga.resource.cx for info and images]
(click to enlarge)

my good friend r0jaws sent me this picture of his 3 state on his A2000

seems to be using the compatible chips as in the A500 chip ram as the same 390544 8375 Agnus

Merlin · 03 July 2008, 13:21

@ Zetr0

It may help everyone to help you if you post up the version number of the Super Agnus I sent you, if there are different versions. I can't remember what version it was.

alexh · 03 July 2008, 13:38

I would say I know more about these Agnuses (Agni?) than most people

http://eab.abime.net/showthread.php?...ighlight=Agnus

http://www.amiga.org/modules/newbb/v...=29535&forum=8

I was unable to get the full information about the pinouts of the various chips.

First thing:

Most (PAL) A600's used the 8375 318069-10

I never could find out if it was the same pinout as the 8375 390544-01 (used on most PAL A500+)

But Dean Brown (aka DKB) said that his MegAChips had different flavour PCB's for different 2Mbyte 8375 Agnuses.

Extra Resources, indirectly related:

http://aminet.net/package/docs/hard/pinouts

Zetr0 · 03 July 2008, 14:17

@Alexh

Thanks for the info, in fact i had caught another convo of yours on a thread on www.amiga.org about Agni as well

thanks for the heads up...

I just spoke to Merlin on the phone and he assures me that the Agnus i have comes from an A600 v 1.6

[Full Designation]

Code:

Although it prolly means less that it sounds the silk on the chip is identical in format and stencil (font) as the 318069-10 on my 1.5 A600 June Bug and my m8 Yorkies 1.3 A600 that I have here also, However I checked the chip against rkauer's A500+ that i have here also (yes i live in a loading dock!!!) and the designation of the Agni on there is identical to the one Merlin sent me... the difference is the silk and stenciling, although CSG, looks more like how MOS used to silk the chips...

I shall take pics...

Zetr0 · 03 July 2008, 14:41

UPDATE

Code:

8375 Agnus 390544-01 [SRC: A500 Plus Service Manual]

pin#		#desc

01		DRD13
02		DRD12
03		DRD11
04		DRD10
05		DRD09
06		DRD08
07		DRD07
08		DRD06
09		DRD05
10		DRD04
11		DRD03
12		DRD02
13		DRD01
14		DRD00
15		
16		_RESET
17		_INTR
18		DMAL
19		_BLISS
20		_BLIT
21		_WE
22
23		_REGEN
24		_AS
25		_RAMEN
26		RGA8
27		RGA7
28		RGA6
29		RGA5
30		RGA4
31		RGA3
32		RGA2
33		RGA1
34		28MHZ
35		A20
36		_CDAC
37		7MHZ
38		CCKQ
39		CCK
40		14MHZ
41
42		CRA0
43		CRA1
44		CRA2
45		CRA3
46		CRA4
47		CRA5
48		CRA6
49		CRA7
50		CRA8
51		_LDS
52		_UDS
53		_CASL
54		_CASU
55		CRA9
56		
57		_RAS0
58		_RAS1
59		A19
60		A01
61		A02
62		A03
63		A04
64		A05
65		A06
66		A07
67		A08
68		A09
69		A10
70		A11
71		A12
72		A13
73		A14
74		A15
75		A16
76		A17
77		A18
78		_LPEN
79		_VSYNC
80		_CSYNC
81		_HSYNC
82
83		DRD15
84		DRD14

okay..... slowly getting there!!!!

5 pins left to discover.....

Zetr0 · 03 July 2008, 15:14

Yet Another Update,

with thanks to Alexh, I have an 8372 Agnus to compare

Code:

8375 Agnus 390544-01		8372 Agnus [A3000]

pin#		#desc		#desc

01		DRD13		DRD13
02		DRD12		DRD12
03		DRD11		DRD11
04		DRD10		DRD10
05		DRD09		DRD09
06		DRD08		DRD08
07		DRD07		DRD07
08		DRD06		DRD06
09		DRD05		DRD05
10		DRD04		DRD04
11		DRD03		DRD03
12		DRD02		DRD02
13		DRD01		DRD01
14		DRD00		DRD00
15				+5V
16		_RESET		_RESET
17		_INTR		_INTR
18		DMAL		_DMAL
19		_BLISS		_BLISS
20		_BLIT		_BLIT
21		_WE		_WE
22		_RW		_RW
23		_REGEN		_REGEN
24		_AS		_AS
25		_RAMEN		_RAMEN
26		RGA8		RGA8
27		RGA7		RGA7
28		RGA6		RGA6
29		RGA5		RGA5
30		RGA4		RGA4
31		RGA3		RGA3
32		RGA2		RGA2
33		RGA1		RGA1
34		28MHZ		28MHZ
35		A20		A20
36		_CDAC		_XCLKEN
37		7MHZ		_CDAC
38		CCKQ		_7MHZ
39		CCK		_CCKQ
40		14MHZ		CCK
41				TEST
42		CRA0		VSS1
43		CRA1		DRA0
44		CRA2		DRA1
45		CRA3		DRA2
46		CRA4		DRA3
47		CRA5		DRA4
48		CRA6		DRA5
49		CRA7		DRA6
50		CRA8		DRA7
51		_LDS		DRA8
52		_UDS		_LDS
53		_CASL		_UDS
54		_CASU		_CASL
55		CRA9		_cASU
56				DRA9
57		_RAS0		_RAS
58		_RAS1		VSS2
59		A19		A19
60		A01		A01
61		A02		A02
62		A03		A03
63		A04		A04
64		A05		A05
65		A06		A06
66		A07		A07
67		A08		A08
68		A09		A09
69		A10		A10
70		A11		A11
71		A12		A12
72		A13		A13
73		A14		A14
74		A15		A15
75		A16		A16
76		A17		A17
77		A18		A18
78		_LPEN		_LPEN
79		_VSYNC		_VSYNC
80		_CSYNC		_CSYNC
81		_HSYNC		_HSYNC
82				VSS
83		DRD15		DRD15
84		DRD14		DRD14


8375 SRC: A600 PLUS MAINTENANCE MANUAL
8372 SRC: "FATAGNUS PRESENT DANS LES AMIGA 300" .GIF

alexh · 03 July 2008, 15:21

Big differences between pins 36 through to 58, just shows how incompatible these two chips are undoubtedly going to be.

Zetr0 · 03 July 2008, 16:18

@alexh

indeed.... the plot thickens more, heres some more research

Code:

                8375            8372             8372B          8370
              [390544-01]     [A3000]
pin#		#desc	       #desc		#desc		#desc

01		DRD13		DRD13		DRD13		RD13
02		DRD12		DRD12		DRD12		RD12
03		DRD11		DRD11		DRD11		RD11
04		DRD10		DRD10		DRD10		RD10
05		DRD09		DRD09		DRD09		RD09
06		DRD08		DRD08		DRD08		RD08
07		DRD07		DRD07		DRD07		RD07
08		DRD06		DRD06		DRD06		RD06
09		DRD05		DRD05		DRD05		RD05
10		DRD04		DRD04		DRD04		RD04
11		DRD03		DRD03		DRD03		RD03
12		DRD02		DRD02		DRD02		RD02
13		DRD01		DRD01		DRD01		RD01
14		DRD00		DRD00		DRD00		RD00
15				+5V		VCC		VCC
16		_RESET		_RESET		_RESET		_RESET
17		_INTR		_INTR		_INTR		_INT3
18		DMAL		_DMAL		_DMAL		_DMAL
19		_BLISS		_BLISS		_BLS		_BLS
20		_BLIT		_BLIT		_BLIT		_DBR
21		_WE		_WE		_WE		_RRW
22		_RW		_RW		_RW		_PRW
23		_REGEN		_REGEN		_REGEN		_RGEN
24		_AS		_AS		_AS		_AS
25		_RAMEN		_RAMEN		_RAMEN		_RAMEN
26		RGA8		RGA8		RGA8		RGA8
27		RGA7		RGA7		RGA7		RGA7
28		RGA6		RGA6		RGA6		RGA6
29		RGA5		RGA5		RGA5		RGA5
30		RGA4		RGA4		RGA4		RGA4
31		RGA3		RGA3		RGA3		RGA3
32		RGA2		RGA2		RGA2		RGA2
33		RGA1		RGA1		RGA1		RGA1
34		28MHZ		28MHZ		28MHZ		28MHZ
35		A20		A20		A20		_XCLK (,A20)
36		_CDAC		_XCLKEN		NC		_XCLKEN
37		7MHZ		_CDAC		_CDAC		_CDAC
38		CCKQ		_7MHZ		_7MHZ		_7MHZ
39		CCK		_CCKQ		_CCKQ		_CCKQ
40		14MHZ		CCK		_CCK		_CCK
41				TEST		PAL/NTSC	TEST	
42		CRA0		VSS1		VSS		VSS
43		CRA1		DRA0		DRA0		MA0
44		CRA2		DRA1		DRA1		MA1
45		CRA3		DRA2		DRA2		MA2
46		CRA4		DRA3		DRA3		MA3
47		CRA5		DRA4		DRA4		MA4
48		CRA6		DRA5		DRA5		MA5
49		CRA7		DRA6		DRA6		MA6
50		CRA8		DRA7		DRA7		MA7
51		_LDS		DRA8		DRA8		MA8
52		_UDS		_LDS		_LDS		_LDS
53		_CASL		_UDS		_UDS		_UDS
54		_CASU		_CASL		_CASL		_CASL
55		CRA9		_CASU		_CASU		_CASU
56				DRA9		DRA9		_RAS1
57		_RAS0		_RAS		_RAS		_RAS0
58		_RAS1		VSS2		VSS		VSS
59		A19		A19		A19		A19
60		A01		A01		A01		A01
61		A02		A02		A02		A02
62		A03		A03		A03		A03
63		A04		A04		A04		A04
64		A05		A05		A05		A05
65		A06		A06		A06		A06
66		A07		A07		A07		A07
67		A08		A08		A08		A08
68		A09		A09		A09		A09
69		A10		A10		A10		A10
70		A11		A11		A11		A11
71		A12		A12		A12		A12
72		A13		A13		A13		A13
73		A14		A14		A14		A14
74		A15		A15		A15		A15
75		A16		A16		A16		A16
76		A17		A17		A17		A17
77		A18		A18		A18		A18
78		_LPEN		_LPEN		_LPEN		_LP
79		_VSYNC		_VSYNC		_VSYNC		_VSY
80		_CSYNC		_CSYNC		_CSYNC		_CSY
81		_HSYNC		_HSYNC		_HSYNC		_HSY
82				VSS		VSS		VSS
83		DRD15		DRD15		DRD15		DRD15
84		DRD14		DRD14		DRD14		DRD14


8375  SRC: A500 PLUS MAINTENANCE MANUAL
8372  SRC: "FATAGNUS PRESENT DANS LES AMIGA 300" .GIF
8372B SRC: "8372B-AGNUS_PIN.TXT"
8370  SRC: "8370-AGNUS-PLCC.PNG"

[CAUTION: 8372 SRC]
The schematic indicates a oblique pin plcc offset (see included picture)

alexh · 03 July 2008, 16:31

FYI A3000 Agnus is 8372AB or 8372B and AFAIK both of those variants do have the same pinout.

02 July 2008, 17:28	#1
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	Schematics Needed!!! Hell there my fellow forum chummies I do so need your help I have been having much chin-waggery with my some partners in the "arcane circle of hackery", about building a 2MB chip mod for the A500 / A2000 project codename = "Chip Wizard 2MB" My Plan is to use a Super Agnus (8375), from a dead A600 (thanks Merlicious), these can also be found on A500+'s, in a very similar way to the Mini Megi Chip click to enlarge (thanks to amiga.resource.cx) As you may know the Super Agnus 8375 -390544-01 is not PIN compatible with the 83-71/73B and 75B variants, however with simple logic its possible to interface this with the A500 / A2000 So... whats the problem I hear you ask.... and "Get on with it" from the back.... well.... I have my eye on you Akira Well the Schematics I have of the A500 8730/1 and the A600 8735 are too poor quality for my eyes to REALLY make out... I need the A500 schematic for the Agnus 8370/1 and GARY chips, as well as their routed path. I also need the pin out schematic for the 8375 Super Agnus as well.. I would be a humbled and appreciative Zetr0 if you can help

03 July 2008, 03:54	#7
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	Try this. The image (in original size) is acceptable. Attached Thumbnails

03 July 2008, 13:38	#14
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,463	I would say I know more about these Agnuses (Agni?) than most people http://eab.abime.net/showthread.php?...ighlight=Agnus http://www.amiga.org/modules/newbb/v...=29535&forum=8 I was unable to get the full information about the pinouts of the various chips. First thing: Most (PAL) A600's used the 8375 318069-10 I never could find out if it was the same pinout as the 8375 390544-01 (used on most PAL A500+) But Dean Brown (aka DKB) said that his MegAChips had different flavour PCB's for different 2Mbyte 8375 Agnuses. Extra Resources, indirectly related: http://aminet.net/package/docs/hard/pinouts Last edited by alexh; 03 July 2008 at 13:50.

03 July 2008, 14:17	#15
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	@Alexh Thanks for the info, in fact i had caught another convo of yours on a thread on www.amiga.org about Agni as well thanks for the heads up... I just spoke to Merlin on the phone and he assures me that the Agnus i have comes from an A600 v 1.6 [Full Designation] Code: CSG 390544-01 8375 3691 20 Although it prolly means less that it sounds the silk on the chip is identical in format and stencil (font) as the 318069-10 on my 1.5 A600 June Bug and my m8 Yorkies 1.3 A600 that I have here also, However I checked the chip against rkauer's A500+ that i have here also (yes i live in a loading dock!!!) and the designation of the Agni on there is identical to the one Merlin sent me... the difference is the silk and stenciling, although CSG, looks more like how MOS used to silk the chips... I shall take pics...

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Schematics Collection!	Zetr0	Hardware pics	40	24 November 2014 01:23
a3000T schematics	jimgeneva	support.Hardware	0	14 March 2012 20:46
Schematics	Loedown	support.Hardware	0	05 February 2010 11:25
A1000 PSU schematics needed	Maverick	MarketPlace	3	23 May 2005 08:12
Schematics wanted	Ironman	support.Hardware	4	09 September 2004 21:43

02 July 2008, 17:35	#2
TheCorfiot Amibay Senior Staff Join Date: Feb 2008 Location: Cardiff / Wales Posts: 1,302	Zetro, I have a Real copy of the Commodore A500 / + Service manual covers all revisions of the Board & full size fold out schematics includes memory cards. I Also Have the same Regarding the A1200 Would you like a borrow???? Can post it to you. Finally ..... I'm giving something Back TC

02 July 2008, 17:39	#3
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	I would LOVE to borrow it my friend, I shall SCAN it too Muchooos appreciated my friend!!!! let me know on the postage.... books arn't cheap to post!!!!

02 July 2008, 17:43	#4
TheCorfiot Amibay Senior Staff Join Date: Feb 2008 Location: Cardiff / Wales Posts: 1,302	Zetro.... You are of course welcome. I need to post you for the A2088 & NIC so I will disguise the package so it won't look like a book. Will get wifey to post tomorrow for you. Yes Royal Fail do charge a premium for sending Reading Material Pleasure to help, don't forget I want one of these upgrades too TC

02 July 2008, 23:24	#5
TheCorfiot Amibay Senior Staff Join Date: Feb 2008 Location: Cardiff / Wales Posts: 1,302	Just got Home & reviewed my A500 manual, It does not contain info regarding the 8375 AGNES, everything else but that. I'm still sending my Manual to the ZedMan as it will still help towards his project, But Please guys if anyone can help our bearded guru regarding the 8375 then please don't be shy Many Thanks TC

03 July 2008, 00:32	#6
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	@TC my friend, I do so appreciate your help I believe that the A500, has the Agnus listed as the 8370 or 8371... chip [U2] "Fat Agnus" a detailed pin out of this is sorely needed. this and the GARY chip [U5]. any help much appreciated

03 July 2008, 11:40	#11
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	sorry Toni, LOL it was after i had posted it figured... hand on thers about 4/5 versions of that chip in A and B varients too LOL

03 July 2008, 11:57	#12
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	Here is another 2MB chip upgrade variant The MegiChip from CP Germany [thanks to amiga.resource.cx for info and images] (click to enlarge) my good friend r0jaws sent me this picture of his 3 state on his A2000 seems to be using the compatible chips as in the A500 chip ram as the same 390544 8375 Agnus

03 July 2008, 13:21	#13
Merlin AmiBay MegaMod Join Date: Mar 2007 Location: Manchester, UK Age: 62 Posts: 1,163	@ Zetr0 It may help everyone to help you if you post up the version number of the Super Agnus I sent you, if there are different versions. I can't remember what version it was.

03 July 2008, 15:21	#18
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,463	Big differences between pins 36 through to 58, just shows how incompatible these two chips are undoubtedly going to be.

03 July 2008, 16:31	#20
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,463	FYI A3000 Agnus is 8372AB or 8372B and AFAIK both of those variants do have the same pinout.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)