[Verse 1] Clock and data march in lockstep formation Master conducts the synchronous conversation SPI speaks with separate lines for each direction MOSI flows out, MISO returns the connection Chip select pins wake devices one by one Four wires total when the protocol's begun [Chorus] Serial talks, peripheral walks the digital wire Master calls, slave responds to every electrical fire SPI splits the channels, I2C shares the lane Two address bits, seven data bits, remember the refrain Bus protocols bridge the silicon divide Communication flowing from the processor side [Verse 2] I2C squeezes conversations through two copper threads SCL ticks the tempo, SDA carries what gets said Seven-bit addresses label every listening node Start and stop conditions frame each transmitted code Pull-up resistors hold the voltage high and clean Open-drain topology keeps the signal pristine [Chorus] Serial talks, peripheral walks the digital wire Master calls, slave responds to every electrical fire SPI splits the channels, I2C shares the lane Two address bits, seven data bits, remember the refrain Bus protocols bridge the silicon divide Communication flowing from the processor side [Bridge] Clock polarity flips the idle state around Clock phase shifts when sampling captures sound Multi-master battles need arbitration rules Acknowledge bits confirm the data jewels Speed grades vary from standard to the fast Embedded systems make these connections last [Verse 3] Sensors streaming temperature and pressure readings Displays painting pixels following master's leadings EEPROMs storing calibration treasure ADCs converting analog without measure Daisy chains and star topologies spread wide Microcontroller orchestrates the electronic ride [Chorus] Serial talks, peripheral walks the digital wire Master calls, slave responds to every electrical fire SPI splits the channels, I2C shares the lane Two address bits, seven data bits, remember the refrain Bus protocols bridge the silicon divide Communication flowing from the processor side [Outro] Clock and data dancing in the circuit board ballet Synchronous symphonies guide the hardware display Protocol mastery unlocks the peripheral gate Serial communication seals the system's fate
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