## Directory `/pub/cbm/documents/chipdata/`

`../`
  [Parent directory]

`1772.info`
  Technical information about the Western Digital WD1770-00 and WD1772-00 MFM controller chips, used in the Commodore 1581 drive.
`64doc`
  A fairly complete description of the NMOS 65xx processors and the Commodore 64.
`6502-NMOS.extra.opcodes`
  "Extra Instructions Of The 65XX Series CPU" by Adam Vardy (abe0084@infonet.st-johns.nf.ca)
  Describes the basic functionality of the extra NMOS 6502 opcodes. See also 64doc.
`6522-VIA.txt`
`6522-VIA.zip`
  6522 Versatile Interface Adapter data sheets converted to text by Frank Kontros. This chip is used in many Commodore disk drives, in the Commodore VIC-20 and in different PET models. The .zip file contains the same information as the .txt file, only the graphics are in IBM Code Page 437 character set instead of plain ASCII.
`656x-luminances.txt`
  MOS 6567 and 6569 luminance signal voltage levels for different colours, measured by Marko Mäkelä. These measurement results cover the 6569R1, 6569R3 (ceramic), 6569R4, 6569R5, 6567R5 6A and 6567R8 (plastic).
`VIC-Article.gz`
`VIC-Artikel.gz`
  Detailed description of the VIC-II graphics chip. Updated 26.08.1996 (corrected idle state graphics explanation). English version ("VIC-Article.gz") and German version ("VIC-Artikel.gz").
  Uploaded by the author, Christian Bauer <bauec002@goofy.zdv.uni-mainz.de>.
`VIC-I.info`
  Almost full description of the MOS 6560/6561 VIC-I chip (used in the Commodore VIC-20). Covers both 6560-101 (NTSC-M) and 6561-101 (PAL-B).
`c64.pla.equations@` (link)
  Logic equations in Abel format for the 82S100 PLA chip used in the C64, and a JEDEC file that can used to burn a 82S100 as a C64 PLA.
`csg.chips.info`
  Information about chips produced by MOS Technologies or its successor, CSG (Commodore Semiconductor Group).
`gte65.zip`
  Some documentation about the GTE G65SC02 and G65SC816 microprocessors.
`pal.timing`
  Reveals the most of the timing of the 6569 and 8566 video chips. See also VIC-Article.gz and VIC-Artikel.gz, which are based on this article.
`programming.reu`
  Some aspects about programming the RAM Expansion Units. See reu.registers for detailed REU description.
`reu.registers`
  Describes all 8726 RAM Expansion Controller registers.

Problems? Refer to /pub/cbm/README, /pub/cbm/README.FILETYPES and /README.FILETYPES!