Z80 Bits and bobs - pt.II - SpecNext

Countless unsubstantiated rumours of a Spectrum +4 to take on the
Commodore Amiga and Atari ST were proven true after all.
Sort of. A few decades later and by a community effort [1].

    * Z80A open-source core in a Spartan SLX16 FPGA, original Z80A
      clock at 3.5MHz with 7MHz and 14MHz "turbo" modes.
    * 512KB RAM, expandable to 2MB memory.
    * Hardware sprites, 256 colors mode, Timex 8x1 mode, output via
      RGB, VGA, HDMI.
    * SD card slot with DivMMC compatible protocol.
    * 3x AY-3-8192 audio chips with stereo output via HDMI and
      Audio-Out jack.
    * 2x DB9 joystick ports, compatible with Cursor, Kempston and
      Interface 2 protocols.
    * PS/2 port: Mouse with Kempston emulation and for an external
      keyboard.
    * Multiface mode for memory access.
    * Full tape support with Mic & Ear ports for tape loading and
      saving.
    * Add-on Raspberry Pi0 accelerator board with 512MB RAM, Broadcom
      BCM2835 1GHz CPU.
    * ESP 8266 WiFi module [3]
    * RTC DS1307 module.
    * NTSC (60Hz) and PAL (50Hz) in setup.
    * Full compatibility with original hardware add-ons for ZX
      Spectrum.

This should be interesting.

31/03/2019

[1]: https://www.specnext.com/
[2]: http://www.8bits4ever.com/divmmc-x2.html
[3]: https://www.specnext.com/the-next-on-the-network/