Famicom expansion port pinout: Difference between revisions
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(Just using the information at http://nesdev.parodius.com/ffpa.txt) |
(add signal descriptions. Remove egregious amount of whitespace at the end of lines) |
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==Pinout of 15-pin Famicom expansion port== | ==Pinout of 15-pin Famicom expansion port== | ||
/\ | /\ | ||
| \ | | \ | ||
GND | 01 \ | GND | 01 \ | ||
| 09 | /OE for joypad 2 | | 09 | /OE for joypad 2 | ||
SOUND | 02 | | SOUND | 02 | | ||
| 10 | out 2 ($4016.2) | | 10 | out 2 ($4016.2) | ||
IRQ | 03 | | IRQ | 03 | | ||
| 11 | out 1 ($4016.1) | | 11 | out 1 ($4016.1) | ||
joypad 2 D4 | 04 | | joypad 2 D4 | 04 | | ||
| 12 | out 0 ($4016.0, Strobe) | | 12 | out 0 ($4016.0, Strobe) | ||
joypad 2 D3 | 05 | | joypad 2 D3 | 05 | | ||
| 13 | joypad 1 D1 | | 13 | joypad 1 D1 | ||
joypad 2 D2 | 06 | | joypad 2 D2 | 06 | | ||
| 14 | /OE for joypad 1 | | 14 | /OE for joypad 1 | ||
joypad 2 D1 | 07 | | joypad 2 D1 | 07 | | ||
| 15 | +5V | | 15 | +5V | ||
joypad 2 D0 | 08 / | joypad 2 D0 | 08 / | ||
| / | | / | ||
\/ | \/ | ||
===Signal descriptions=== | |||
;Digital inputs to the Famicom:Joypad 1 D1, Joypad 2 D0…D4 | |||
;Digital outputs from the Famicom:Out 0, 1, 2; /OE for both joypads | |||
;Open-collector bidirectional: IRQ | |||
;Analog outputs: SOUND (before expansion audio is mixed in) | |||
Revision as of 20:03, 11 March 2013
Pinout of 15-pin Famicom expansion port
/\
| \
GND | 01 \
| 09 | /OE for joypad 2
SOUND | 02 |
| 10 | out 2 ($4016.2)
IRQ | 03 |
| 11 | out 1 ($4016.1)
joypad 2 D4 | 04 |
| 12 | out 0 ($4016.0, Strobe)
joypad 2 D3 | 05 |
| 13 | joypad 1 D1
joypad 2 D2 | 06 |
| 14 | /OE for joypad 1
joypad 2 D1 | 07 |
| 15 | +5V
joypad 2 D0 | 08 /
| /
\/
Signal descriptions
- Digital inputs to the Famicom
- Joypad 1 D1, Joypad 2 D0…D4
- Digital outputs from the Famicom
- Out 0, 1, 2; /OE for both joypads
- Open-collector bidirectional
- IRQ
- Analog outputs
- SOUND (before expansion audio is mixed in)
