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Connector:Cartridge Slot (CPC Plus only): Difference between revisions

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Below is from the Arnold V specs:
The CPC+/GX4000 has a female 2x18 pin cart-edge connector for [[GX4000_cartridge|cartridges]].
  ROM CARTRIDGE: 2 pcs 2 x 9 way 2.5mm pitch sockets.
  1a A10 2a A2 1b +5V 2b +5V
  3a *CE 4a A1 3b CLK 4b CA18
  5a D7 6a A0 5b CA16 6b CA17
  7a D6 8a D0 7b CA15 8b CA14
  9a D5 10a D1 9b A12 10b A13
  11a D4 12a D2 11b A7 12b A8
  13a D3 14a SIN 13b A9 14b A9
  15a CCLR 16a GND 15b A5 16b A11
  17a GND 18a GND 17b A4 18b A3
however, that seems to be nonsense... or maybe an internal connector?


As seen on the photos at [[GX4000_cartridge]], the cartridges have 2x18 pins - not 2x2x9 pins.
In the schematics, the pins are numbered A1..A18 and B1..B18. However, the text layer on the cartridge PCBs typically uses a different numbering: 1..36 (with even numbers on the solder side of the cartridge) (and with numbers ordered in opposite direction):
 
component side    solder side
1  B18 VCC        2  A18 VCC
3  B17 CLK4      4  A17 CA18/LK2
5  B16 CA16      6  A16 CA17/LK4
7  B15 CA15/LK6  8  A15 CA14
9  B14 A12        10 A14 A13
11 B13 A7        12 A13 A8
13 B12 A6        14 A12 A9
15 B11 A5        16 A11 A11
17 B10 A4        18 A10 A3
19 B9  A10        20 A9  A2
21 B8  /CE        22 A8  A1
23 B7  D7        24 A7  A0
25 B6  D6        26 A6  D0
27 B5  D5        28 A5  D1
29 B4  D4        30 A4  D2
31 B3  D3        32 A3  SIN
33 B2  CCLR      34 A2  GND
35 B1  GND        36 A1  GND
 
* The SIN,CCLR,CLK4 pins are special signals for the [[ACID]] chip. Cartridges won't work without ACID.
 
* Note: Arnold V specs say that "ROM CARTRIDGE: 2 pcs 2 x 9 way 2.5mm pitch sockets." This seems to be nonsense (or might refer to an internal connector on the mainboard). The external cartridge connector has 2x18 pins - not 2x2x9 pins.

Revision as of 14:04, 20 February 2010

The CPC+/GX4000 has a female 2x18 pin cart-edge connector for cartridges.

In the schematics, the pins are numbered A1..A18 and B1..B18. However, the text layer on the cartridge PCBs typically uses a different numbering: 1..36 (with even numbers on the solder side of the cartridge) (and with numbers ordered in opposite direction): 

component side    solder side
1  B18 VCC        2  A18 VCC
3  B17 CLK4       4  A17 CA18/LK2
5  B16 CA16       6  A16 CA17/LK4
7  B15 CA15/LK6   8  A15 CA14
9  B14 A12        10 A14 A13
11 B13 A7         12 A13 A8
13 B12 A6         14 A12 A9
15 B11 A5         16 A11 A11
17 B10 A4         18 A10 A3
19 B9  A10        20 A9  A2
21 B8  /CE        22 A8  A1
23 B7  D7         24 A7  A0
25 B6  D6         26 A6  D0
27 B5  D5         28 A5  D1
29 B4  D4         30 A4  D2
31 B3  D3         32 A3  SIN
33 B2  CCLR       34 A2  GND
35 B1  GND        36 A1  GND
  • The SIN,CCLR,CLK4 pins are special signals for the ACID chip. Cartridges won't work without ACID.
  • Note: Arnold V specs say that "ROM CARTRIDGE: 2 pcs 2 x 9 way 2.5mm pitch sockets." This seems to be nonsense (or might refer to an internal connector on the mainboard). The external cartridge connector has 2x18 pins - not 2x2x9 pins.
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