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Top Document: Atari 8-Bit Computers: Frequently Asked Questions
Previous Document: 1.15) What issues surround NTSC vs. PAL vs. SECAM computer versions?
Next Document: 2.1) What video display devices and speakers can I use with my Atari?
1.16) What are the pinouts for the various ports on the Atari?
Controller Port (male jack)(4 on 400/800, 2 on all others):
1 5
o o o o o
o o o o
6 9 trackball (CX22) meanings:
1. (Joystick) Forward Input- - - - - X Direction
2. (Joystick) Back Input - - - - - -X Motion
3. (Joystick) Left Input - - - - - - Y Direction
4. (Joystick) Right Input - - - - - Y Motion
5. B Potentiometer Input
6. Trigger Input/Light Pen/Light Gun Input (400 supports a light pen or
7. +5V light gun in port 4 only)
8. Ground
9. A Potentiometer Input
Serial I/O (SIO)/Peripheral port (male jack)(all machines):
2 12
o o o o o o
o o o o o o o
1 13
1. Clock Input 8. Motor Control
2. Clock Output 9. ~Proceed
3. Data Input 10. +5V/Ready (1200XL lacks +5V thanks to current
4. Ground limit resistor R63. Replace R63 with a jumper
5. Data Output wire to enable +5V on this pin on the 1200XL.)
6. Ground 11. SIO Audio Input
7. ~Command 12. 400/800: +12V ; XL/XE: not connected
13. ~Interrupt
Monitor port (female jack): (all but 400, NTSC 600XL, SECAM 800XL,
3 o o 1 SECAM 130XE, XEgs)
o o
5 o 4
2
1. Composite Luminance (PAL 600XL: Not Connected)
2. Ground
3. Audio Output
4. Composite Video
5. Composite Chrominance (1200XL: Not Connected; PAL 600XL: Ground;
all but very late-production 800XL: Not Connected)
Monitor port (female jack)(SECAM 800XL, SECAM 130XE):
THIS PINOUT REMAINS QUESTIONABLE. STILL LOOKING FOR DOCUMENTATION FROM A
NON-WEB SOURCE.
5 1 1. +12V 5mA max (Select - held at +5V to cause the TV to
o 6 o switch to this video source)
o 2. Audio (High Level - amplitude about 6 x regular Audio -
o o unused by Atari-distributed Peritel cable)
4 o 2 3. Audio
3 4. Composite Video
5. Ground (common for audio & video)
6. +5V 100mA max (UHF power modulator -
unused by Atari-distributed Peritel cable)
The standard video cable provided by Atari France with every
SECAM 800XL (? and 130XE ?) has the male 6-pin DIN on one end, and a
standard male Peritel connector on the other end, with this pinout:
2. Audio (right channel, from port pin #3) _20_________________2_
4. Ground (for audio, from port pin #5) \ o o o o o o o o o o |
6. Audio (left channel, from port pin #3) (21)\ o o o o o o o o o o|
8. +5V (Select, from port pin #1) 19------------------1
17. Ground (for video, from port pin #5)
20. Composite video (from port pin #4)
Power (female jack)(all but 400,800,1200XL):
7 6 1. +5V
o o 2. Shield
3 o o 1 3. Ground
o o 4. +5V
5 o 4 5. Ground
2 6. +5V
7. Ground
Cartridge Slot (present on all machines; Left Cartridge Slot on 800):
A B C D E F H J K L M N P R S
o o o o o o o o o o o o o o o
o o o o o o o o o o o o o o o
1 15
1. ~S4 Chip Select--$8000 to $9FFF A. RD4 ROM present--$8000 to $9FFF
2. A3 CPU Address bus line B. GND Ground
3. A2 CPU Address bus line C. A4 CPU Address bus line
4. A1 CPU Address bus line D. A5 CPU Address bus line
5. A0 CPU Address bus line E. A6 CPU Address bus line
6. D4 CPU Data bus line F. A7 CPU Address bus line
7. D5 CPU Data bus line H. A8 CPU Address bus line
8. D2 CPU Data bus line J. A9 CPU Address bus line
9. D1 CPU Data bus line K. A12 CPU Address bus line
10. D0 CPU Data bus line L. D3 CPU Data bus line
11. D6 CPU Data bus line M. D7 CPU Data bus line
12. ~S5 Chip Select--$A000 to $BFFF N. A11 CPU Address bus line
13. +5V P. A10 CPU Address bus line
14. RD5 ROM present--$A000 to $BFFF R. R/~W CPU read/write
15. ~CCTL Cartridge control select S. B02,Phi2 CPU Phase 2 clock
Right Cartridge Slot (800 only):
A B C D E F H J K L M N P R S
o o o o o o o o o o o o o o o
o o o o o o o o o o o o o o o
1 15
1. R/~W CPU read/write late A. B02,Phi2 CPU Phase 2 clock
2. A3 CPU Address bus line B. GND Ground
3. A2 CPU Address bus line C. A4 CPU Address bus line
4. A1 CPU Address bus line D. A5 CPU Address bus line
5. A0 CPU Address bus line E. A6 CPU Address bus line
6. D4 CPU Data bus line F. A7 CPU Address bus line
7. D5 CPU Data bus line H. A8 CPU Address bus line
8. D2 CPU Data bus line J. A9 CPU Address bus line
9. D1 CPU Data bus line K. A12 CPU Address bus line
10. D0 CPU Data bus line L. D3 CPU Data bus line
11. D6 CPU Data bus line M. D7 CPU Data bus line
12. ~S4 Chip Select--$8000 to $9FFF N. A11 CPU Address bus line
13. +5V P. A10 CPU Address bus line
14. RD4 ROM present--$8000 to $9FFF R. R/~W Read/write
15. ~CCTL Cartridge control select S. B02,Phi2 CPU Phase 2 clock
Parallel Bus Interface (PBI) (600XL and 800XL only):
1 49
o o o o o o o o o o o o o o o o o o o o o o o o o
o o o o o o o o o o o o o o o o o o o o o o o o o
2 50
1. GND Ground 2. ~EXTSEL External Select
3. A0 CPU Address bus line 4. A1 CPU Address bus line
5. A2 CPU Address bus line 6. A3 CPU Address bus line
7. A4 CPU Address bus line 8. A5 CPU Address bus line
9. A6 CPU Address bus line 10. GND Ground
11. A7 CPU Address bus line 12. A8 CPU Address bus line
13. A9 CPU Address bus line 14. A10 CPU Address bus line
15. A11 CPU Address bus line 16. A12 CPU Address bus line
17. A13 CPU Address bus line 18. A14 CPU Address bus line
19. GND Ground 20. A15 CPU Address bus line
21. D0 CPU Data bus line 22. D1 CPU Data bus line
23. D2 CPU Data bus line 24. D3 CPU Data bus line
25. D4 CPU Data bus line 26. D5 CPU Data bus line
27. D6 CPU Data bus line 28. D7 CPU Data bus line
29. GND Ground 30. GND Ground
31. B02,Phi2 CPU Phase 2 clock 32. GND Ground
33. NC Reserved 34. ~RST Reset output
35. ~IRQ Interrupt request 36. ~RDY Ready input
37. NC Reserved 38. ~EXTENB CPU External decoder Enable
39. NC Reserved 40. ~REF Refresh cycle
41. ~CAS Column Address Strobe 42. GND Ground
43. ~MPD Math Pack (FP) Disable 44. ~RAS Row Address Strobe
45. GND Ground 46. LR/~W Latched read/write
47. 800XL: NC. 600XL: +5V 48. 800XL: NC. 600XL: +5V
49. Audio input 50. GND Ground
Enhanced Cartridge Interface (ECI)/Expansion port (130XE, 800XE, & later 65XE)
A B C D E F H
o o o o o o o
o o o o o o o
1 7
A. Reserved 1. ~EXTSEL External Select
B. ~IRQ Interrupt request 2. ~RST Reset output
C. ~HALT Halt CPU 3. ~D1XX Chip select at area $D1xx
D. A13 CPU Address bus line 4. ~MPD Math Pack (FP) Disable
E. A14 CPU Address bus line 5. Audio input
F. A15 CPU Address bus line 6. ~REF Refresh cycle
H. GND Ground 7. +5V
Keyboard Port (XE System console only):
1 8
o o o o o o o o
o o o o o o o
9 15
1. KR2 Keyboard Response 8. K2 Keyboard Scan
2. K3 Keyboard Scan 9. Ground
3. K4 Keyboard Scan 10. Not Connected
4. K5 Keyboard Scan 11. Ground
5. KR1 Keyboard Response 12. Not Connected
6. K0 Keyboard Scan 13. Trigger 2
7. K1 Keyboard Scan 14. 5 VDC
15. 5 VDC
Top Document: Atari 8-Bit Computers: Frequently Asked Questions
Previous Document: 1.15) What issues surround NTSC vs. PAL vs. SECAM computer versions?
Next Document: 2.1) What video display devices and speakers can I use with my Atari?
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Michael Current <michael@mcurrent.name>
Last Update October 22 2009 @ 05:22 AM