- 6500/
- CSG 6500/6501 microcontroller data sheet
- 6509/
- CSG 6509 microprocessor with memory management
- 650x/
- CSG NMOS 6500 Series Microprocessors
- 6523/
- CSG NMOS 6523 Tri-Port interface (TPI)
- 6525/
- CSG NMOS 6525 Tri-Port Interface (TPI) with interrupt control
- 6582/
- CSG HMOS 6582 Sound Interface Device
- 65c23/
- CSG 65C23 Tri-Port Interface, preliminary information
- 6809/
- Motorola MC6809E 8-bit microprocessing unit
- 7501/
- CSG 7501 preliminary data sheet
- la8200m/
- Sanyo LA8200M r/w amplifier (equivalent to Sony CX20185 and Motorola MC28719)
- r650x/
- Rockwell NMOS 650x and 651x microprocessors
- t6721/
- Toshiba T6721A, T6772, T6684 C²MOS Voice Synthesizing LSI, June 1984
- wd177x/
- Western Digital 1770/1772/1773 Floppy Disk Controller
- ym3526/
- Yamaha YM3526 OPL FM synthesizer chip used in the Sound Expander cartridge.
- 23128.zip
1999-08-13
316184
- 16kb×8 mask-programmable asynchronous read-only memory
- 2332.zip
1999-08-15
388939
- 4kb×8 mask-programmable asynchronous read-only memory
- 2364.zip
1999-08-16
411377
- 8kb×8 mask-programmable asynchronous read-only memory
- 24256.zip
1999-08-17
368330
- 32kb×8 read-only memory, hand-written printer's copy of the preliminary
data sheet.
- 5710.txt
2000-02-18
2088
- The floppy disk controller used in the 1571CR (128DCR internal drive);
data composed by William Levak.
- 64doc
1997-07-30
83317
- A fairly complete description of the NMOS 65xx processors and the
Commodore 64.
- 6502-NMOS.extra.opcodes
1996-11-17
19647
- "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.
- 6508.zip
1999-09-20
1268906
- CSG 6508 microprocessor with 256 bytes of RAM and 8 I/O pins
- 6510-pre.zip
1999-10-20
1376562
- Preliminary 6510 CPU data sheets, rev. A, 11/82. At least the pin-out
has been changed later; the on-chip I/O port has only 6 bits.
- 6510.zip
1999-09-25
1322775
- CSG 6510 microprocessor with 6 I/O pins
- 6520.zip
1998-05-15
481151
- Data sheets for the MCS6520 Peripheral Adapter, which appears to be a
Motorola 6821 PIA clone.
- 6522-VIA.txt
1997-03-23
74398
-
- 6522-VIA.zip
1997-03-23
17459
- 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.
- 6522.zip
1998-06-22
2597280
- MCS 6522 Versatile Interface Adapter, preliminary data sheet, November 1977.
- 6523-pre.zip
1999-09-20
485436
- CSG 6523 tri-port interface (preliminary information)
- 6525-pre.zip
1998-06-22
972183
- MOS 6525 Tri-port Interface Adapter, preliminary information, 2/81.
- 6526.zip
1998-06-23
1310901
- MOS Technology 6526 Complex Interface Adapter (CIA) data sheets, 11/81.
- 6526cia.zip
1998-06-11
38330
- MOS 6526 CIA (Complex Interface Adapter) data sheet in HTML format.
- 6529.zip
1998-06-23
434499
- CSG 6529 Single Port Interface, 4/81. Used in the C16, C116 and plus/4.
- 6530.zip
1998-06-22
1259447
- MCS 6530 (Memory, I/O, Timer array). 1024×8 ROM, 64×8 static RAM, otherwise
similar to the 6532.
- 6532.zip
1998-06-23
1362568
- CSG 6532 (Memory, I/O, Timer array); also called RIOT (RAM, I/O and Timer).
Used in simple peripheral devices and e.g. in the Atari VCS 2600 game
console. 128×8 static RAM, two 8-bit bidirectional I/O ports, programmable
interval timer with interrupt.
- 6551.zip
1998-06-23
1034326
- CSG 6551 Asynchronous Communication Interface Adapter (ACIA), preliminary
information from 12/80.
- 6560.zip
1998-06-23
2074730
- MOS Technology 6560/6561 Video Interface Chip (VIC), 2/80.
- 6567.zip
1999-10-20
2241999
- CSG 6567 video interface chip (preliminary)
- 656x-luminances.gif
1999-02-11
4205
- Visualization of the measurements reported in 656x-luminances.txt.
Generated by Philip Timmermann <MOD@STARDATE.WESTFALEN.DE>.
- 656x-luminances.txt
1996-12-19
3188
- 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).
- 6581.zip
1998-06-23
2240143
- MOS Technology 6581 Sound Interface Device (SID), preliminary information.
- 65ce02.txt
1999-01-09
33383
- Differences between the Rockwell R65C02 and the Commodore CSG65CE02
used in the 4510 processor of the Commodore 65. Composed by Michael Steil.
- 68b45.zip
1998-04-16
2052711
- Motorola 68B45 Cathode Ray Tube Controller (CRTC), used in the Commodore
Model II computers (B128/B256). It is generally not compatible with
the 6545 used in the PET computers.
- 8701.txt
1999-04-23
2338
- 8701 is the clock generator chip used in Commodore 8-bit computers since
about 1985. Typical of Commodore, not all contacts of the chip have been
documented. Written and uploaded by William Levak <wlevak@cyberspace.org>.
- 8701.zip
1999-09-25
518103
- Commodore IC clock generator data sheet
- Final Cartridge III Internals.txt
1998-04-19
10163
- Information about the BANKING functions of the FC3 (Version 1.0)
- HD46505.zip
1998-04-27
1287239
- Hitachi Cathode Ray Tube Controller (CRTC), sometimes used in the
PET computers.
- VIC-Article.gz
1996-09-11
33020
-
- VIC-Artikel.gz
1996-09-11
36614
- 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.txt
1998-02-22
5295
- 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).
- am2910.zip
1999-10-20
486901
- AMD Am2910A Microprogram Controller, used in the D9060/D9090 hard disk drive
- c64-pla.txt@
1996-11-10
12142
- 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.
- c64e.txt
2000-01-14
2323
- Pinout of the custom chip used in the C64 BN/E board. Composed by
William Levak.
- c6545.zip
1998-05-12
1694269
- Data sheet for Commodore 6545 Cathode Ray Tube Controller (CRTC)
- cia6526.zip
1997-04-24
70341
- Detailed information about the guts of the MOS 6526 CIA, reverse-engineered
by Wolfgang Lorenz. Includes a C++ implementation of the CIA, and test
programs for testing emulators.
- csg.chips.info
1996-11-27
31930
- Information about chips produced by MOS Technologies or
its successor, CSG (Commodore Semiconductor Group).
- gte65.zip
1996-05-23
50376
- Some documentation about the GTE G65SC02 and G65SC816 microprocessors.
- pal.timing
1994-06-03
27542
- 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
1993-11-01
11731
- Some aspects about programming the RAM Expansion Units.
See reu.registers for detailed REU description.
- r6545.zip
1998-05-12
1333044
- Data sheet for Rockwell 6545 Cathode Ray Tube Controller (CRTC)
- reu.registers
1993-11-01
3655
- Describes all 8726 RAM Expansion Controller registers.
- sy6530.zip
1998-07-04
3391202
- Synertec 6530 Memory, I/O, Timer Array. April 1979.
Seems to have the same functionality as the MOS Technologies 6530.
- tsuit215.zip@
1997-05-29
169382
- Emulator Test Suite version 2.15. Tests 6502 emulation compatibility.
Developed as part of PC64 by Wolfgang Lorenz. The files are now in 1541
disk image format, for easier access on all emulators. The test suite now
includes IRQ and NMI timing tests.
Mirror sites
–
General information
–
File types
–
Data transfer
The Commodore brandname and the chickenhead logo are
property of Commodore International BV, a Tulip company.