Editing Atari 65XE (section)

== Input, output and expansion ==

* '''Cartridge slot''' - 30-pin edge connector<ref name="fsm130" />
* '''SIO port''' - 13-pin. Pin 1 clock in, 2 clock out, 3 data into CPU, 4 ground, 5 data out,
  6 ground, 7 command, 8 motor control, 9 proceed, '''10 ready (computer on)''',
  11 audio in (175 mV), '''12 not used''', 13 interrupt<ref name="fsm130" />
* '''Two controller jacks''' - 9-pin D-type; pin 7 is +5 V, pin 8 ground<ref name="fsm130" />
* '''Monitor jack''' - 5-pin DIN
* '''RF output''' with channel 2/3 switch
* '''Power jack''' - 7-pin DIN

{{Warning|The SIO port on the XE machines carries '''no supply rail'''. Pin 10 is a "ready"
signal, not a +5 V output, and pin 12 is not used at all. Instructions to "check the +5 V and
+12 V lines on SIO pins 10 and 12" describe something that does not exist on these
machines.<ref name="fsm130" />}}

The XE range dropped the XL's 50-pin Parallel Bus Interface. Its replacement, the '''Enhanced
Cartridge Interface (ECI)''' - a 14-pin extension sitting behind the 30-pin cartridge connector
- was announced as a '''130XE-only''' feature.<ref name="antic85" /> The later '''CA200519''' board assembly
is shared between the 130XE and the 65XE/800XE, so individual machines vary; check the rear
panel of the actual unit rather than assuming from the model name.<ref name="fsm130" />