22  MIDI (Musical Instrument Digital Interface)

This is a serial interface with start and stop bits at the beginning and end of each byte transmitted. The MIDI standard specifies a baud rate of 31.25 k. (The baud rate is the maximum number of bits per second.) A tolerance of ± 1 per cent is specified for the clock frequency.

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Figure 123  The format of a MIDI message byte. LSB = least significant bit; MSB = most significant bit

MIDI Hardware Interface

In Figure 124 UART stands for ‘universal asynchronous receiver/ transmitter’. The IN connector receives data from other devices, the OUT connector carries data which the device has generated and ...

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