Dual channel serial port card with software controlled baud rate and timers, for Z50BusDesigned by Stephen C Cousins in United Kingdom
This card houses a Z80 serial I/O (SIO/2) device (Z84C42xxPEG) and a Z80 counter/timer (CTC) device (Z84C30xxPEG), designed for use with the Z50Bus. The CTC provides four counter/timer channels. Ch...Read More…
This card houses a Z80 serial I/O (SIO/2) device (Z84C42xxPEG) and a Z80 counter/timer (CTC) device (Z84C30xxPEG), designed for use with the Z50Bus.
The CTC provides four counter/timer channels. Channel 0 is used to control the baud rate of serial port A. Channel 1 is used to control the baud rate of serial port B. Channels 2 and 3 provide a periodic timer tick.
The module provides support for Z80 mode 2 interrupts.
Device address options: SIO = 0x80 to 0x83, CTC = 0x88 to 0x8B, or SIO = 0x84 to 0x87, CTC = 0x8C to 0x8F
Documentation can be found at www.scc.me.uk or by following the link below.
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David | June 12, 2019
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