# Atari Cartridge Port

(At the Computer)
(At the Devices)

40 PIN EDGE ?? at the Computer.
40 PIN EDGE ?? at the Devices.

Pin | Name | Description
--- | --- | ---
1 | +5V | +5 VDC
2 | +5V | +5 VDC
3 | D14 | Data 14
4 | D15 | Data 15
5 | D12 | Data 12
6 | D13 | Data 13
7 | D10 | Data 10
8 | D11 | Data 11
9 | D8 | Data 8
10 | D9 | Data 9
11 | D6 | Data 6
12 | D7 | Data 7
13 | D4 | Data 4
14 | D5 | Data 5
15 | D2 | Data 2
16 | D3 | Data 3
17 | D0 | Data 0
18 | D1 | Data 1
19 | A13 | Address 13
20 | A15 | Address 15
21 | A8 | Address 8
22 | A14 | Address 14
23 | A7 | Address 7
24 | A9 | Address 9
25 | A6 | Address 6
26 | A10 | Address 10
27 | A5 | Address 5
28 | A12 | Address 12
29 | A11 | Address 11
30 | A4 | Address 4
31 | RS3 | ROM Select 3
32 | A3 | Address 3
33 | RS4 | ROM Select 4
34 | A2 | Address 2
35 | UDS | Upper Data Strobe
36 | A1 | Address 1
37 | LDS | Lower Data Strobe
38 | GND | Ground
39 | GND | Ground
40 | GND | Ground