Repeat Problem 9.9, but assume that each 7-segment display unit has a 7-bit register associated with it, rather than a BCD-to-7-segment decoder. The register has a control input Load, such that the seven data bits are loaded into the register when Load = 1. Each bit in the register drives one segment of the associated display unit. Figure P9.2 shows the register-display arrangement. Arrange the microcontroller output connections such that the parallel port A provides the data for all four display units.LO1

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a b C b Sc Sa Sb Sg 5 5 5 5 5 5 5 d Register e Se f g 6.D Load Figure P9.2 A7-segment display with a register. C