NES

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NES=Nintendo Entertainment System

Console manufactured by Nintendo.

Contents

Technical specs

CPUs: modified 6502, (NTSC: 1.79 MHz, PAL: 1.66 MHz)
RAM: 2 KB
ROM:
  • 2 KB (Main)
  • 16 KB to 512 KB (Cartridge)
Graphic modes:
  • PAL: 256 x 240 pixels, 24 out of 52 colors.
  • NTSC: 256 x 224 pixels, 24 out of 52 colors.
Sound chip:  ?

Connectors

  • Cartridge (Game Pak) 
          ________
         |*       |
 VEE  >01]        [37>  21.48MHZ
 A11  <02]        [38>  PHI2
 A10  <03]        [39>  A12
  A9  <04]        [40>  A13
  A8  <05]        [41>  A14
  A7  <06] +----+ [42]  D7
  A6  <07] |6502| [43]  D6
  A5  <08] |BUS | [44]  D5
  A4  <09] +----+ [45]  D4
  A3  <10]        [46]  D3
  A2  <11]        [47]  D2
  A1  <12]        [48]  D1
  A0  <13]        [49]  D0
 R/W  <14]        [50>  /PRG
/IRQ  [15]        [51]  (06)
(42)  [16] +----+ [52]  (07)
(41)  [17] |EXP.| [53]  (08)
(40)  [18] |PORT| [54]  (09)
(39)  [19] +----+ [55]  (10)
(38)  [20]        [56>  /W
  /R  <21]        [57<  /VCS
VA10  >22]        [58>  /A13
  A6  <23]        [59>  A7
  A5  <24]        [60>  A8
  A4  <25] +----+ [61>  A9
  A3  <26] |2C02| [62>  A11
  A2  <27] |BUS | [63>  A10
  A1  <28] +----+ [64>  A12
  A0  <29]        [65>  A13
  D0  [30]        [66]  D7
  D1  [31]        [67]  D6
  D2  [32]        [68]  D5
  D3  [33]        [69]  D4
  S0  [34] +----+ [70]  S2
  S1  [35] |CIC | [71>  4MHZ
 VCC  >36] +----+ [72<  VEE
         |________|

Famicom cartridges had a 60-pin connection while NES cartridges had a 72-pin connection

  • Expansion port 
          _______
         |*      \
 VCC  >01]        [48<  VCC
 VEE  >02]        [47<  VEE
 AIN  >03]        [46]  --
/NMI  [04]        [45>  C.2
CA15  <05]        [44>  C.1
(51)  [06]        [43>  C.0
(52)  [07]        [42]  (16)
(53)  [08]        [41]  (17)
(54)  [09]        [40]  (18)
(55)  [10]        [39]  (19)
/C2R  <11]        [38]  (20)
C1.1  >12]  EXP.  [37>  /C1R
C1.3  >13]  PORT  [36>  C1.4
/IRQ  [14]        [35>  C1.0
C2.2  >15]        [34>  /C1R
C2.3  >16]        [33>  C1.2
/C2R  <17]        [32]  D0
C2.4  >18]        [31]  D1
C2.0  >19]        [30]  D2
C2.1  >20]        [29]  D3
VOUT  <21]        [28]  D4
AOUT  <22]        [27]  D5
 VDD  <23]        [26]  D6
4MHZ  <24]        [25]  D7
         |_______/
  • Controller ports

See expansion port for pin nomenclature here. 

 __
|  \
| 1 \
|    \
| 2 5 |
|     |
| 3 6 |
|     |
| 4 7 |
+-----+

1: ground
2: /C1R (/C2R for second player)
3: C.0
4: C1.0 (C2.0)
5: +5VDC.
6: C1.3 (C2.3)
7: C1.4 (C2.4)

Contributions

Sources

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