SC110, v1.1, Description

Slot saving design with a Z80 SIO/2 and a Z80 CTC on one board for RC2014.

This module houses a Z80 SIO/2 chip, which provides two TTL serial ports for use with FTDI style serial adapter cables, and a Z80 CTC, which has four counter/timer channels.

The main features of this module are:

  • Full Z80 mode 2 interrupt support (IEI/IEO daisy-chain)
  • Two TTL serial ports for use with FTDI serial adapter cables
  • Software control of port B’s baud rate
  • Source of bus clock (option) to potentially reduce board count
  • Z80 mode 2 interrupt generation for two external devices
  • Counting and timing functions

Homebrew 8-bit retro computing