Tag: z80 ctc

2 matching upgrades

Showing 2 products.

StatusProductWhat it doesCompatibilityLinks
Build itChecked Jul 24, 2026SC718 Z80 CTC Moduleby Small Computer Central
timerz80 ctcrc2014rcbusinterruptskitopen hardware

Adds four programmable counter and timer channels with frequency and interrupt generation.

The project supplies a schematic, Gerbers, PCB design files, and kit or bare-PCB paths. The optional onboard oscillator is not included in the kit. Mode 2 interrupt chaining needs suitable backplane support or flying leads.

Sources
  • RC2014 modular systems Bus/interface
Official project page
Build itChecked Jul 24, 2026SC725 Serial and Timer Moduleby Small Computer Central
serialtimerz80 sioz80 ctcrc2014rcbusinterruptsromwbwkitopen hardware

Combines two Z80 SIO/2 serial ports with four programmable Z80 CTC channels.

The project supplies a schematic, Gerbers, PCB design files, and kit or bare-PCB paths. The optional oscillator is not included in the kit. Standard RomWBW does not enable CTC support, so its documented jumper setup bypasses the CTC and assumes a 7.3728 MHz CPU clock.

Sources
  • RC2014 modular systems Bus/interface
Official project page