Find the value of CS,RD,WR,A1,A0 for 8253 to perform following: Load Counter 2 Read counter 1 Write Mode word Read counter 0. Load counter 1
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Elaborate which pins are responsible for counter 0,1 and 2 selection in 8253
Elaborate the functioning of following bits of Control Word register of 8255 in IO mode: D0 D1 D2 D3 D4
Obtain the control word for the following configuration of the ports of 8255 A for mode 1 operation: Port A – as output port, Mode for Port A – mode 1 Port B – output port, Mode for Port B ...
Q1.If CWR=9B H , the counter operation is load LSB load MSB Counter latch Q2.___ is used to disable (Mask) or enable (Unmask) individual interrupt request inputs. Q3.Control words and status information from the microprocessor to PIC and from PIC to microprocessor respectively, are transferred ...
The value of CWR in mode 0 for Port A = Input port, Port B = not used, Port CU = Input port and Port CL = Output port is 0F 98 09 04