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Finite State Finite State Machines Machines ASIC DESIGN USING FPGA BEIT VII KICSIT May 10 2012 Lecture 31
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Finite State MachinesFinite State MachinesFinite State MachinesFinite State Machines
ASIC DESIGN USING FPGA
BEIT VII
KICSIT
May 10 2012 Lecture 31
May 10 2012 Lecture 31 2
UART as State MachineUART as State Machine
• UART top module consists of two modules, instanciated as uar_top (Receiver module)and uat_top ( Transmitter module).
• The Baud rate of the UART is 1200.• Hence the transmitter clock is generated as 1200 Hz.• And the Receiver clock is generated as 19200 Hz (1200 x 16),
16 times faster than Transmitter clock. • This is due to the fact that the Receiver module uses sampling
of the received bit stream of data from pc.• 8 samples of each bit are compared in order to ensure the bit
and hence reduce the error.
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UART as State MachineUART as State Machine
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State Machine Hardware State Machine Hardware
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