2936129461 - Chapter 7 Registers Meilin Liu Department of...

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CEG 260, Meilin Liu 1 Chapter 7 Registers Meilin Liu Department of Computer Science Wright State University Homepage: http://www.wright.edu Email: [email protected]
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CEG 260, Meilin Liu 2 Registers Multiple flip flops can be combined to form a data register. A Register is a group of flip flops function as a unit, usually they share the common clock, clear, preset and other control signals. Shift registers allow data to be transported one bit at a time Registers also allow for parallel transfer Many bits transferred at the same time Shift registers can be used with adders to build arithmetic units Remember: most digital hardware can be built from combinational logic (and, or, invert) and flip flops Basic components of most computers
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CEG 260, Meilin Liu 3 Register with Parallel Load Register: Group of Flip-Flops function as a unit Usually: D Flip-Flops Holds four bits of Data Loads data in Parallel on Clock rising edge Asynchronous Clear (Reset)
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CEG 260, Meilin Liu 4 Register with Load Control
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