12-06-2020, 04:43 AM
The ICS64S is an all-new, easy to build (DIY), redesign of the original Commodore 64 computer.
Build your own fantastic new 8 bit machine that can run 100% of the original software, 24 hours a day with zero reliability issues!
ICS64S Features:
- Superior ground planes and trace layout for cleaner signals.
- Modernized power supply circuitry with space for TO-220 regulator w/large heatsink or a DC-DC regulator (Recom, CUI, etc).
- Ability to use two different pinouts for the DB9 connectors.
- Uses original 24 pin CHAR and BASIC ROMs, or 28 pin versions (2764). Kernal can be 2764, 27128, 27256, or 27512 EPROM (up to 8 different ROM images).
- USER PORT power output stability for devices that pulse power (EPROM programmers, digitizers, WiFi modems, relay controllers, etc).
- Jumper pads for VIC II power select (6xxx-12v/8xxx-5v).
- Improved RESTORE key circuitry (so you don't need to beat on the RESTORE key for it work)!
- Internal dual headers connected to joystick pots, for use with MSSIAH, Prophet64, etc.
- Internal IEC header (for SD2IEC and other devices).
- Reset header (for external reset requirements).
- Ability to easily switch between NTSC and PAL by just replacing a socketed crystal, moving a jumper, and replacing the VIC. A change can be done in a minute or less.
- Two different size crystal oscillator package options.
- Test points for diagnosing voltages.
- Composite/Luma/Chroma amplified and filtered video output.
- 32MHZ CPU that handles RESET, Kernal ROM switching, OLED screen, LEDs, and monitoring of various lines.
- I/O port for OLED screen (for programming and status), serial interface (to update CPU), or any I2C device.
- 3 wire RGB LED interface for status LEDs. LEDs are daisey chained.
- IRQ, EXROM, and voltage lines are monitored and shown on different LEDs (or same LED) and/or OLED.
- TVS (anti-static) diode protection on the joystick ports.
- 3 pin audio port output with solder pad input for 2nd (stereo) SID channel output.
This YouTube video has a complete description of the ICS64S.
https://www.youtube.com/watch?v=sfbriKLpSQE&t=537s