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The SRAM_DQ signals are inout type. When should the SRAM_Controller tristate these signals?Question 5Select one:a.When rw=1 and bus_enable=0b.When rw=1 or bus_enable=0c.When rw=1 and bus_enable=1d.When rw=1 or bus_enable=1e.When rw=0 or bus_enable=0

Question

The SRAM_DQ signals are inout type. When should the SRAM_Controller tristate these signals?Question 5Select one:a.When rw=1 and bus_enable=0b.When rw=1 or bus_enable=0c.When rw=1 and bus_enable=1d.When rw=1 or bus_enable=1e.When rw=0 or bus_enable=0

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Solution

The SRAM_Controller should tristate the SRAM_DQ signals when they are not in use. This typically happens when the bus_enable signal is low (0), indicating that the bus is not currently enabled for data transfer.

The rw signal indicates whether a read (1) or write (0) operation is being performed. However, this signal does not directly control whether the SRAM_DQ signals should be tristated.

Therefore, the correct answer is:

a. When rw=1 and bus_enable=0

This means that the SRAM_DQ signals should be tristated when a read operation is being performed (rw=1) and the bus is not enabled (bus_enable=0).

This problem has been solved

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