SIO/2 Serial Module

£26.00£27.00

  • Dual TTL level serial ports
  • Independent speed
  • Up to 115,200 baud
  • FTDI compatible header
  • Standard Bus – Single row headerpins
  • Enhanced Bus – Double row header pins
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Description

This is the SIO/2 Serial Module which is supplied with the RC2014 Pro, RC2014 Zed or RC2014 Zed Pro.  With an updated ROM, it can be used as a replacement for the serial module supplied with the RC2014 Classic II.  It can also be used if you are building your own custom RC2014 variant. It is suitable for use with Standard Bus backplanes (Backplane 5 or Backplane 8), or with Enhanced Bus backplanes (Backplane Pro). If the Standard Bus option is chosen, then a 20 pin straight header is also supplied.  This gives access to the CLK2, TX2 and RX2 signals.

This is a dual port serial module based on the Zilog SIO/2 chip. It features 2 UART, Port A and Port B, thus allowing your RC2014 to connect to 2 separate devices, for example, a terminal and a printer.

The speed of Port A is derived from the main clock running the CPU (ie 7.3728Mhz on a standard RC2014) which gives a baud rate of 115200bps.

Port B can be clocked from the same clock via a jumper, which will also result in running at 115200bps. Alternatively, it can get it’s clock from the Clock2 pin on the enhanced bus. If using the Dual Clock Module then standard serial speeds down to 4800bps can be used.

Jumpers on both Port A and B allow the RC2014 to be powered from an FTDI cable.

For PCB Only option, see Core Module PCB listing

Additional ROM or Compact Flash media can be found in the Components section

Other modules shown in the photos are for illustration purposes only.

Documentation

Bill of materials

Additional information

Bus Type

Standard Bus, Enhanced Bus

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