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bonus_quiz4_sol - Serial – Bits set sequentially along...

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ECE 2801 – Foundations of Embedded Systems Bonus Quiz #4 Name: ____ _________ _____                                          ECE Box #: __________ 1)  A certain 8-bit analog-to-digital converter (ADC) is configured with V ref+  = 3V and  V ref-  = 0.  What would be the output code from this ADC for an input of 1.5V? a)  11110000=F0h     b) 00001111=0Fh       c)  10000000 = 80h      d) Can't be determined 2) Explain the difference between a parallel interface (or parallel bus) and a serial  interface (or serial bus). Parallel – Each bit has its own connection. All bits transfer together (on same clock edge)
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Unformatted text preview: Serial – Bits set sequentially along the same connection (longer transfer time) 3) The biggest difference between synchronous serial interfaces, like SPI, and non- synchronous (asynchronous) serial interfaces is a) Shared ground and higher data rate for asynchronous interfaces b) Shared clock forcing lower data rates for SPI c) Shared clock allowing much higher data rates for SPI d) No real difference. All serial interfaces are about the same. 4) Sketch a block diagram of an SPI interface between a single master (i.e. MSP430) and a single slave peripheral. SIMO SOMI SCLK CS MSP 430 SPI device...
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