NES/Hardware information: Difference between revisions

Revision as of 16:31, 26 March 2006

The Nintendo Entertainment System (NES for short) consists of:

2A03 Central Processing Unit
- A 6502 8-bit (using a custom MOS Technology 6502 class) Processor running at 1.789Mhz
- On-die PSG sound supporting 5 channels:
  - 2 pulse wave
  - 1 triangle wave
  - 1 noise
  - 1 DPCM
- 16 Kbit (2kb) of RAM
2C02 Picture Processing Unit
- 16 Kbit (2kb) of VRAM
- Screen Resolution of 256x240
- 52 Colors Available (four levels of gray, and four levels of each of 12 hues)
- 8 color emphasis modes
- Up to 25 colors on screen through normal means, though with special tricks, several hundred colors can be on screen
- Maximum of 64 sprites
- Maximum of 8 sprites per scanline
- 8x8 or 8x16 sprite size
- Two picture scrolls, Horizontal and Verical
Game Pak
- Min/Max attested cart size: 192 Kbit - 4 Mbit
- More than 320 Kbit requires bankswitching hardware
- Some games contain extra RAM for the CPU and/or PPU

More NES hardware information can be found at http://nesdevwiki.ath.cx/index.php/Main_Page

@@ Line 12: / Line 12: @@
 ** 16 Kbit (2kb) of VRAM
 ** Screen Resolution of 256x240
-** 52 Colours Available (four levels of gray, and four levels of each of 12 hues)
+** 52 Colors Available (four levels of gray, and four levels of each of 12 hues)
-** Up to 25 colours on screen
+** 8 color emphasis modes
+** Up to 25 colors on screen through normal means, though with special tricks, several hundred colors can be on screen
 ** Maximum of 64 sprites
 ** Maximum of 8 sprites per scanline
@@ Line 23: / Line 24: @@
 ** Some games contain extra RAM for the CPU and/or PPU
-More NES hardware information can be found at http://nesdev.parodius.com/wiki/
+More NES hardware information can be found at http://nesdevwiki.ath.cx/index.php/Main_Page
 [[Category:Nintendo Entertainment System|Hardware Information]]