[{TableOfContents }]
!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
1-4 see [STICK0]-[STICK3], 3 also Paddle Trigger A see [PTRIG0], 4 also Paddle Trigger B see [PTRIG1]\\
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

!Cartridge
on all machines; "Left Cartridge" 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 
}}}
||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
_=active low

!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
_=active low

!Parallel Bus
to be added