Input devices: Difference between revisions

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(+Usage of port pins by hardware type)
(→‎Usage of port pins by hardware type: Removes read clock signal from controllers that likely don't actually use it.)
 
(18 intermediate revisions by 6 users not shown)
Line 10: Line 10:
** On the original Famicom, the two ports differ: $4016 D0 and D2 and $4017 D0 are permanently connected to both controllers, while $4016 D1 and all of $4017's D0-D4 are connected to the expansion port.
** On the original Famicom, the two ports differ: $4016 D0 and D2 and $4017 D0 are permanently connected to both controllers, while $4016 D1 and all of $4017's D0-D4 are connected to the expansion port.
** On the AV Famicom, only D0 is connected to the controller ports. The expansion port is unchanged.
** On the AV Famicom, only D0 is connected to the controller ports. The expansion port is unchanged.
=== Programmer's reference ===
== Programmer's reference ==
* [[Controller_port_registers|Registers]]
* [[Controller reading]]


=== Hardware ===
== Hardware ==
* [[Controller port pinout]]
* [[Controller port pinout]]
* Controllers
* Controllers
** '''NES [[Standard controller]]'''
** [[Arkanoid controller]]
** [[Arkanoid controller]]
** [[Bandai Hyper Shot]]
** [[Bandai Hyper Shot]]
Line 22: Line 23:
** [[Exciting Boxing Punching Bag]]
** [[Exciting Boxing Punching Bag]]
** [[Family BASIC Keyboard]]
** [[Family BASIC Keyboard]]
** [[Four Score|Four Score/NES Satellite]] four-player adapters
** [[Four Score|Four Score, NES Satellite]] 4-player adapters
** [[Hori 4 Players Adapter]] for Famicom
** [[Jissen Mahjong controller]]
** [[Jissen Mahjong controller]]
** [[Konami Hyper Shot]]
** [[Konami Hyper Shot]]
Line 29: Line 31:
** [[Oeka Kids tablet]]
** [[Oeka Kids tablet]]
** [[Partytap]]
** [[Partytap]]
** [[Pokkun Moguraa Mat]]
** [[Power Glove]]
** [[Power Glove]]
** [[Power Pad]]
** [[Power Pad]]
** [[RacerMate Bicycle]]
** [[RacerMate Bicycle]]
** [[Standard controller]]
** [[SNES controller]]
** [[Top Rider Bike]]
** [[U-Force]]
** [[U-Force]]
** [[Virtual Boy controller]]
** [[Zapper]] lightgun
** [[Zapper]] lightgun
* [[Infrared controllers]]


=== Other I/O devices ===
== Other I/O devices ==
* [[Famicom 3D glasses]]
* [[Famicom 3D glasses]]
* [[Family BASIC Data Recorder]]
* [[Family BASIC Data Recorder]]
* [[R. O. B.]]
* [[R.O.B.]]
* [[Battle Box]]
* [[Battle Box]]
* [[Turbo File]]
* [[Turbo File]]
* [[Barcode Battler]]
* [[Barcode Battler]]
* [[TV-NET Rank 2 controller]]
* [[FAM-NET Keyboard]]
* [[Family Computer Network Adapter]]
* [[Super Famicom NTT Data Keypad]]


 
== Usage of port pins by hardware type ==
=== Usage of port pins by hardware type ===
{| class="wikitable"
{| class="wikitable"
!Device                     
|-
!<span style="font-size:60%">$4016</span><br/>D4
|style="text-align: left;"|type
!<span style="font-size:60%">$4016</span><br/>D3
!colspan="3" style="border-left: 2px solid black;"|output
!<span style="font-size:60%">$4016</span><br/>D2
!colspan="6" style="border-left: 2px solid black;"|Joypad 1
!<span style="font-size:60%">$4016</span><br/>D1
!colspan="6" style="border-left: 2px solid black;"|Joypad 2
!<span style="font-size:60%">$4016</span><br/>D0
!style="border-left: 2px solid black;"|audio output
!<span style="font-size:60%">$4016</span><br/>CLK
|-
!<span style="font-size:60%">$4017</span><br/>D4
|style="text-align: left;"|signal
!<span style="font-size:60%">$4017</span><br/>D3
!style="border-left: 2px solid black;"|OUT2
!<span style="font-size:60%">$4017</span><br/>D2
!<span style="font-size:60%">$4017</span><br/>D1
!<span style="font-size:60%">$4017</span><br/>D0
!<span style="font-size:60%">$4017</span><br/>CLK
!OUT2
!OUT1
!OUT1
!OUT0
!OUT0
!/IRQ
!style="border-left: 2px solid black;"|/OE1
! AUDIO
!style="border-left: 2px solid gray;"|D4
! +5V
!D3
! GND
!D2
! Note
!D1
 
!D0
!style="border-left: 2px solid black;"|/OE2
!style="border-left: 2px solid gray;"|D4
!D3
!D2
!D1
!D0
!style="border-left: 2px solid black;"|AUDIO
|-
|access method
|colspan="3" style="text-align: center; border-left: 2px solid black;"|write $4016
|style="border-left: 2px solid black;"|<ref>/OE1 is activated by reading $4016.</ref>
|colspan="5" style="text-align: center; border-left: 2px solid gray;"|read $4016
|style="border-left: 2px solid black;"|<ref>/OE2 is activated by reading $4017.</ref>
|colspan="5" style="text-align: center; border-left: 2px solid gray;"|read $4017
|style="border-left: 2px solid black;"|
|-
!style="text-align: left; border-top: 2px solid black;"|available on these ports
!colspan="3" style="border-left: 2px solid black; border-top: 2px solid black;"|
!style="border-left: 2px solid black; border-top: 2px solid black;"|
!colspan="5" style="border-left: 2px solid gray; border-top: 2px solid black;"|
!style="border-left: 2px solid black; border-top: 2px solid black;"|
!colspan="5" style="border-left: 2px solid gray; border-top: 2px solid black;"|
!style="border-left: 2px solid black; border-top: 2px solid black;"|
|-
|Controller port 1 (AV Famicom)
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|
|D0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|-
|Controller port 1 (Famicom (internal))
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|
|D0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|-
|[[Controller port pinout|Controller port]] 1 (NES)
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|D4
|D3
|
|
|D0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|-
|Controller port 2 (AV Famicom)
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|
|
|
|
|D0
|style="border-left: 2px solid black;"|
|-
|Controller port 2 (Famicom (internal))
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|D2
|
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|
|
|
|
|D0
|style="border-left: 2px solid black;"|
|-
|[[Controller port pinout|Controller port]] 2 (NES)
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|D4
|D3
|
|
|D0
|style="border-left: 2px solid black;"|
|-
|[[Expansion port#Famicom|Expansion port]] (Famicom)
|style="border-left: 2px solid black;"|OUT2
|OUT1
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|D4
|D3
|D2
|D1
|D0
|style="border-left: 2px solid black; text-align: center;"|AUDIO
|-
|[[Expansion port#NES|Expansion port]] (NES)
|style="border-left: 2px solid black;"|OUT2
|OUT1
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|D4
|D3
|D2
|D1
|D0
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|D4
|D3
|D2
|D1
|D0
|style="border-left: 2px solid black; text-align: center;"|AUDIO
|-
!style="text-align: left; border-top: 2px solid black;"|used by these devices
!colspan="3" style="border-left: 2px solid black; border-top: 2px solid black;"|
!style="border-left: 2px solid black; border-top: 2px solid black;"|
!colspan="5" style="border-left: 2px solid gray; border-top: 2px solid black;"|
!style="border-left: 2px solid black; border-top: 2px solid black;"|
!colspan="5" style="border-left: 2px solid gray; border-top: 2px solid black;"|
!style="border-left: 2px solid black; border-top: 2px solid black;"|
|-
|[[Standard controller|Controller]] (port 1)<ref name="port">Controllers using NES ports can be plugged into either port, using that port's /OE and data lines. However, games may expect a controller to only be in a specific port.</ref>
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|
|D0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|-
|[[Standard controller|Controller]] (port 2)<ref name="port" />
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|
|
|
|
|D0
|style="border-left: 2px solid black;"|
|-
|[[Standard controller|Controller]] (Famicom controller 2)<ref>The Famicom controller 2 has a microphone that sends audio input over $4016 D2. This is not affected by OUT0 nor /OE2.</ref>
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|D2
|
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|
|
|
|
|D0
|style="border-left: 2px solid black;"|
|-
|[[Standard controller|Controller]] (expansion port)
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black; text-align: center;"|AUDIO<ref>A Famicom expansion controller may connect the audio output signal to a headphone jack (for example: IQ502 joypad).</ref>
|-
|[[Arkanoid controller]] (port 2)<ref name="port" />
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|D4
|D3
|
|
|
|style="border-left: 2px solid black;"|
|-
|[[Arkanoid controller]] (expansion port)
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|
|-
|[[Arkanoid controller#Arkanoid II expansion port|Arkanoid II controller]] (2 controllers)
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|D4
|D3
|
|D1
|
|style="border-left: 2px solid black;"|
|-
|[[Bandai Hyper Shot]]
|style="border-left: 2px solid black;"|OUT2
|OUT1
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|D4
|D3
|
|
|
|style="border-left: 2px solid black; text-align: center;"|AUDIO
|-
|[[Exciting Boxing Punching Bag]]
|style="border-left: 2px solid black;"|
|OUT1
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|D4
|D3
|D2
|D1
|
|style="border-left: 2px solid black;"|
|-
|[[FAM-NET Keyboard]]
|style="border-left: 2px solid black;"|OUT2
|OUT1
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|D4
|D3
|D2
|D1
|
|style="border-left: 2px solid black;"|
|-
|[[Power Pad#Family Trainer Mat|Family Trainer Mat]]
|style="border-left: 2px solid black;"|OUT2
|OUT1
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|D4
|D3
|D2
|D1
|
|style="border-left: 2px solid black;"|
|-
|[[Family BASIC Keyboard]]
|style="border-left: 2px solid black;"|OUT2
|OUT1
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|D4
|D3
|D2
|D1
|
|style="border-left: 2px solid black;"|
|-
|[[Famicom 3D System]]
|style="border-left: 2px solid black;"|
|OUT1
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|-
|[[Famicom Network Controller|Famicom Network System controller]]
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|-
|Four player adapter ([[Four Score]])
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|
|D0
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|
|
|
|
|D0
|style="border-left: 2px solid black;"|
|-
|Four player adapter ([[Four Score|Hori 4 Players Adapter]])
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|
|-
|[[Hori Track]]
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|
|-
|[[Jissen Mahjong controller]]
|style="border-left: 2px solid black;"|OUT2
|OUT1
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|
|-
|[[Konami Hyper Shot]]
|style="border-left: 2px solid black;"|OUT2
|OUT1
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|D4
|D3
|D2
|D1
|
|style="border-left: 2px solid black;"|
|-
|[[Oeka Kids tablet]]
|style="border-left: 2px solid black;"|
|OUT1
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|D3
|D2
|
|
|style="border-left: 2px solid black;"|
|-
|[[Coconuts Japan Pachinko Controller|Pachinko controller]]
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|-
|[[Party Tap]]
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|D4
|D3
|D2
|
|
|style="border-left: 2px solid black;"|
|-
|[[Power Pad]] (port 2)<ref name="port" />
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|D4
|D3
|
|
|
|style="border-left: 2px solid black;"|
|-
|[[Port test controller]]
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|D4
|D3
|
|
|D0
|style="border-left: 2px solid black;"|/OE2
|style="border-left: 2px solid gray;"|D4
|D3
|
|
|D0
|style="border-left: 2px solid black;"|
|-
|[[TV-NET controller]]
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|-
|[[TV-NET Rank 2 controller]]
|style="border-left: 2px solid black;"|
|
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|
|
|D1
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|-
|[[Zapper]] (port 2)
|style="border-left: 2px solid black;"|
|
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|
|
|
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|D4
|D3
|
|
|
|style="border-left: 2px solid black;"|
|-
|-
<!--  Device                                              !! $4016 D4 !! $4016 D3 !! $4016 D2 !! $4016 D1 !! $4016 D0 !! $4016 CLK !! $4017 D4 !! !4017 D3 !! 4017 D2 !! $4017 D1 !! $4017 D0 !! $4017 CLK !!OUT2 !!OUT1 !!OUT0 !!/IRQ !! AUDIO !! +5V !! GND  !! Note-->
|[[Zapper]] (expansion port)
| [[Controller port pinout|Joypad1]]                     ||          ||          ||          ||          || x        || x        ||          ||          ||        ||          ||          ||          ||    ||    || x  ||    ||      || x    || x    ||rowspan=4|*AUDIO line can be used for pad which has audio jack to plug in headphones (for example: IQ502 joypad)<br/>*$4016 D2 can be uses as microphone input
|style="border-left: 2px solid black;"|
|-                                                                                                                              
|  
| [[Controller port pinout|Joypad2]]                    ||         ||         || x        ||         ||         ||           ||          ||          ||        ||          || x        || x        ||    ||    || x  ||    ||      || x    || x   
|  
|-                                                                                                                             
|style="border-left: 2px solid black;"|  
| [[Controller port pinout|Joypad3]]<br/>(Famicom)      ||          ||          ||          || x        ||          || x        ||          ||          ||        ||          ||          ||          ||    ||    || x  ||    ||      || x    || x   
|style="border-left: 2px solid gray;"|  
|-                                                                                                                         
|  
| [[Controller port pinout|Joypad4]]<br/>(Famicom)      ||          ||          ||          ||          ||          ||          ||          ||          ||        || x        ||          || x        ||    ||    || x  ||    ||      || x    || x   
|  
|-                                                                                                                          
|  
| Lightgun [[Zapper]]<br/>(NES P2/Famicom)              ||          ||          ||          ||          ||          ||          || x        || x        ||        ||          ||          ||          ||    ||    ||    ||    ||      || x    || x    ||rowspan=2|*AUDIO line can be used for emiting bullet shoot sounds (for example: Casel Zapper)
|  
|-                                                                                                               
|style="border-left: 2px solid black;"|  
|  Lightgun [[Zapper]]<br/>(NES P1)                      || x        || x        ||          ||          ||          ||          ||          ||          ||        ||          ||          ||          ||    ||    ||    ||    ||      || x    || x   
|style="border-left: 2px solid gray;"|D4
|D3
|  
|  
|  
|style="border-left: 2px solid black; text-align: center;"|<ref>The Casel Zapper plays audio when the trigger is pulled, but this is done entirely by the controller independent of the console's audio out.</ref>
|-
|-
| [[Family BASIC Keyboard]]/Subor Keyboard              ||         ||         ||         ||          ||          ||          || x        || x        || x      || x        ||         ||           || x  || x  || x  ||     ||       || x    || x   
|[[Zapper]] (Vs. System) (port 1)<ref name="port" />
|style="border-left: 2px solid black;"|  
|  
|OUT0
|style="border-left: 2px solid black;"|/OE1
|style="border-left: 2px solid gray;"|
|  
|  
|  
|D0
|style="border-left: 2px solid black;"|
|style="border-left: 2px solid gray;"|
|
|  
|
|  
|style="border-left: 2px solid black;"|
|}


|}
<references/>

Latest revision as of 07:11, 20 January 2024

The NES has two general-purpose controller ports on the front of the console, as well as a (rarely used) 48-pin expansion port underneath.

The Famicom's standard controllers are hardwired to the front of the unit, and a special 15-pin expansion port is commonly used for third-party controllers. The AV Famicom, however, features detachable controllers using the same ports as the NES.

The NES and Famicom have a set of I/O ports used for controllers and other peripherals, consisting of the following:

  • One output port, 3 bits wide, accessible by writing the bottom 3 bits of $4016.
    • The values latched by $4016/write appear on the OUT0-OUT2 output pins of the 2A03/07, where OUT0 is routed to the controller ports and OUT0-OUT2 to the expansion port on the NES.
  • Two input ports, each 5 bits wide, accessible by reading the bottom 5 bits of $4016 and $4017. Reading $4016 and $4017 activates the /OE1 and /OE2 signals, respectively, which are routed to the controller ports and the expansion port.
    • On the NES, only D0, D3, and D4 are connected to both controller ports, while all of D0-D4 are connected to the expansion port.
    • On the original Famicom, the two ports differ: $4016 D0 and D2 and $4017 D0 are permanently connected to both controllers, while $4016 D1 and all of $4017's D0-D4 are connected to the expansion port.
    • On the AV Famicom, only D0 is connected to the controller ports. The expansion port is unchanged.

Programmer's reference

Hardware

Other I/O devices

Usage of port pins by hardware type

type output Joypad 1 Joypad 2 audio output
signal OUT2 OUT1 OUT0 /OE1 D4 D3 D2 D1 D0 /OE2 D4 D3 D2 D1 D0 AUDIO
access method write $4016 [1] read $4016 [2] read $4017
available on these ports
Controller port 1 (AV Famicom) OUT0 /OE1 D0
Controller port 1 (Famicom (internal)) OUT0 /OE1 D0
Controller port 1 (NES) OUT0 /OE1 D4 D3 D0
Controller port 2 (AV Famicom) OUT0 /OE2 D0
Controller port 2 (Famicom (internal)) OUT0 D2 /OE2 D0
Controller port 2 (NES) OUT0 /OE2 D4 D3 D0
Expansion port (Famicom) OUT2 OUT1 OUT0 /OE1 D1 /OE2 D4 D3 D2 D1 D0 AUDIO
Expansion port (NES) OUT2 OUT1 OUT0 /OE1 D4 D3 D2 D1 D0 /OE2 D4 D3 D2 D1 D0 AUDIO
used by these devices
Controller (port 1)[3] OUT0 /OE1 D0
Controller (port 2)[3] OUT0 /OE2 D0
Controller (Famicom controller 2)[4] OUT0 D2 /OE2 D0
Controller (expansion port) OUT0 /OE1 D1 AUDIO[5]
Arkanoid controller (port 2)[3] OUT0 /OE2 D4 D3
Arkanoid controller (expansion port) OUT0 D1 /OE2 D1
Arkanoid II controller (2 controllers) OUT0 D1 /OE2 D4 D3 D1
Bandai Hyper Shot OUT2 OUT1 OUT0 /OE1 D1 D4 D3 AUDIO
Exciting Boxing Punching Bag OUT1 D4 D3 D2 D1
FAM-NET Keyboard OUT2 OUT1 OUT0 D4 D3 D2 D1
Family Trainer Mat OUT2 OUT1 OUT0 D4 D3 D2 D1
Family BASIC Keyboard OUT2 OUT1 OUT0 D4 D3 D2 D1
Famicom 3D System OUT1
Famicom Network System controller OUT0 /OE1 D1
Four player adapter (Four Score) OUT0 /OE1 D0 /OE2 D0
Four player adapter (Hori 4 Players Adapter) OUT0 /OE1 D1 /OE2 D1
Hori Track OUT0 /OE2 D1
Jissen Mahjong controller OUT2 OUT1 OUT0 /OE2 D1
Konami Hyper Shot OUT2 OUT1 D4 D3 D2 D1
Oeka Kids tablet OUT1 OUT0 D3 D2
Pachinko controller OUT0 /OE1 D1
Party Tap OUT0 /OE2 D4 D3 D2
Power Pad (port 2)[3] OUT0 /OE2 D4 D3
Port test controller OUT0 /OE1 D4 D3 D0 /OE2 D4 D3 D0
TV-NET controller OUT0 /OE1 D1
TV-NET Rank 2 controller OUT0 /OE1 D1
Zapper (port 2) D4 D3
Zapper (expansion port) D4 D3 [6]
Zapper (Vs. System) (port 1)[3] OUT0 /OE1 D0
  1. ↑ /OE1 is activated by reading $4016.
  2. ↑ /OE2 is activated by reading $4017.
  3. ↑ 3.0 3.1 3.2 3.3 3.4 Controllers using NES ports can be plugged into either port, using that port's /OE and data lines. However, games may expect a controller to only be in a specific port.
  4. ↑ The Famicom controller 2 has a microphone that sends audio input over $4016 D2. This is not affected by OUT0 nor /OE2.
  5. ↑ A Famicom expansion controller may connect the audio output signal to a headphone jack (for example: IQ502 joypad).
  6. ↑ The Casel Zapper plays audio when the trigger is pulled, but this is done entirely by the controller independent of the console's audio out.
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