Solved B Fig Q3 B Shows The Details Of 8255 Programmable Chegg

Solved B Fig Q3 B Shows The Details Of 8255 Programmable Chegg (b) fig. q3(b) shows the details of 8255 programmable peripheral interface (ppi) used for the detection and control of fire along with the 8085 microprocessor. by analysing fig. q3(b). (1) identify the addresses of ports a, b & c and control register. [4 marks] deduce a control word to detect the fire and on off the alarm in mode 0 operation. (6) fig. 23(b) shows the details of 8255 programmable peripheral interface (ppi) used for the detection and control of fire along with the 8085 microprocessor. by analysing fig.q3(6), (1) identify the addresses of ports a. b & c and control register. [4 marks) (11) deduce a control word to detect the fire and on off the alarm in mode o operation.

Solved Questions For The 8255 Programmable Peripheral Chegg Programmable peripheral interface 8255. 8255 is a programmable peripheral interface, available in the form of a 40 pin ic which works on a power supply of 5 v dc. it is compatible with a wide range of microprocessors and microcontrollers, making it widely popular. it has three 8 bit i o: ports a, b, and c. port a and port b can function as 8 bit input or output ports. Similarly, group b contains an 8 bit port b, containing lines pb0 pb7 and a 4 bit port c with lower bits pc0 pc3. the port c upper and port c lower can be used in combination as an 8 bit port c. • both the port c is assigned the same address. thus one may have either three 8 bit i o ports or two 8 bit and two 4 bit ports from 8255. Gate ec 2004 question paper with solutions. q. 54 the 8255 programmable peripheral interface is used as described below. (i) an a d converter is interface to a microprocessor through an 8255. the conversion is initiated by a signal from the 8255 on port c. a signal on port. (ii) two computers exchange data using a pair of 8255s. port a works as a.

Solved B Draw Simple Block Diagram Of 8255 Programmable Chegg Similarly, group b contains an 8 bit port b, containing lines pb0 pb7 and a 4 bit port c with lower bits pc0 pc3. the port c upper and port c lower can be used in combination as an 8 bit port c. • both the port c is assigned the same address. thus one may have either three 8 bit i o ports or two 8 bit and two 4 bit ports from 8255. Gate ec 2004 question paper with solutions. q. 54 the 8255 programmable peripheral interface is used as described below. (i) an a d converter is interface to a microprocessor through an 8255. the conversion is initiated by a signal from the 8255 on port c. a signal on port. (ii) two computers exchange data using a pair of 8255s. port a works as a. 8255a programmable peripheral interface. Microprocessor | 8255 (programmable peripheral interface).