Control and Status Register (CSR) is a

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in many

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that are used as storage devices for information about instructions received from machines. The device is generally placed in the register address 0 or 1 in CPUs and works on the concept of using a comparison of

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(carry, overflow and zero, usually) to decide on various if-then instructions related to electronic decision flows. In digital devices, the control and status registers are described by a register map.BT
Register Maps & Control Status Registers
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References

{{DEFAULTSORT:Control Status Register Digital registers