SIO-Connector#
     __________________________ 
    /                          \ 
   /   2   4   6   8   10  12   \ 
  /                              \
 /   1   3   5   7   9   11  13   \
/__________________________________\
| lower row | upper row | 
|---|---|
| 1 Clock Input | 2 Clock Output | 
| 3 Data Input | 4 Ground | 
| 5 Data Output | 6 Ground | 
| 7 _Command | 8 Motor control | 
| 9 _Proceed | 10 +5V DC/Ready | 
| 11 Audio Input | 12 +12V DC | 
| 13 _Interrupt | 
Notes:
- _=active low
 - Pin 10: +5V DC not on 1200XL
 - Pin 12: +12V DC on 400/800 only. 1400XL/1450XLD?
 
Joystick-Connector#
_________________________
\                       /
 \  1   2   3   4   5  /
  \                   /  
   \  6   7   8   9  /
    \_______________/ 
| lower row | upper row | 
|---|---|
| 1 Up | 6 Trigger | 
| 2 Down | 7 +5V DC | 
| 3 Left | 8 Ground | 
| 4 Right | 9 Pot A | 
| 5 Pot B | 
5,9 see PADDL0-PADDL7
6 see STRIG0-STRIG3, also Light Pen Input, see LPENV, LPENH, (400 supports a light pen or 7. +5V light gun in port 4 only)
Monitor Connector#
   3 o           o 1
    5 o         o 4
           o
           2
5 PIN DIN 180° (DIN41524) FEMALE at the computer.
| Pin | Description | 
|---|---|
| 1 | Composite Luminance (Composite Video on PAL 600XL) | 
| 2 | Ground | 
| 3 | Audio Output | 
| 4 | Composite Video | 
| 5 | Composite Chroma (not on 800XL (except "800XLF"), 1200XL; Ground on PAL 600XL) | 
Power Connector#
not on 400, 800, 1200XL
    7 o         o 6
  3 o             o 1
    5 o         o 4
           o
           2
7 PIN DIN 'C' FEMALE at the computer.
| Pin | Description | 
|---|---|
| 1 | +5V | 
| 2 | Shield | 
| 3 | Ground | 
| 4 | +5V | 
| 5 | Ground | 
| 6 | +5V | 
| 7 | Ground | 
Power consumption
| Model | Current @ 5VDC | 
|---|---|
| 130XE | 1.5A | 
| 65XE | 1.0A | 
| 800XE | 1.0A | 
| XE | 1.0A | 
| 600XL | 1.5A | 
| 800XL | 1.5A | 
(Left) Cartridge#
on all machines; "Left Cartridge" on 800A 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
| upper row | lower row | 
|---|---|
| 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 (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
| upper row | lower row | 
|---|---|
| 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 | 
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 2 3 4 5 6 7
| upper row | lower row | 
|---|---|
| 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 |