Mode 1 вЂ“ Handshake I/O mode or strobbed I/O mode.In this mode there is no interrupt handling capacity. Mode 0 вЂ“In this mode all the three ports (port A, B, C) can work as simple input function or simple output function.This is further divided into three modes: If MSB of control word (D7) is 1, PPI works in input-output mode. In this mode only port C bits are used for set or reset. If MSB of control word (D7) is 0, PPI works in BSR mode. D0 вЂ“ D7 вЂ“ Data pins for the transfer of data.This is done by writing a suitable word in control register (control word D0-D7).Д¬SвЂ™ A1 A0 Selection Address 0 0 0 PORT A 80 H 0 0 1 PORT B 81 H 0 1 0 PORT C 82 H 0 1 1 Control Register 83 H 1 X X No Selection X Control group B consists of port C lower and port B.Дepending upon the value if CSвЂ™, A1 and A0 we can select different ports in different modes as input-output function or BSR. Control group A consist of port A and port C upper. It has two control groups, control group A and control group B. Port A can work either in mode 0, mode 1 or mode 2 of input-output mode. Port B can work in either mode 0 or in mode 1 of input-output mode. port C lower and port C upper and port C can work in either BSR (bit set rest) mode or in mode 0 of input-output mode of 8255. Port C is further divided into two 4-bit ports i.e. It consists of 40 pins and operates in +5V regulated power supply. Random Access Memory (RAM) and Read Only Memory (ROM).Program for Binary To Decimal Conversion.Program for Decimal to Binary Conversion.8086 program to subtract two 16-bit numbers with or without borrow.8086 program to subtract two 8 bit BCD numbers.8086 program to add two 8 bit BCD numbers.8086 program to add two 16-bit numbers with or without carry.8086 program to Print a 16 bit Decimal number.8086 program to find the square root of a perfect square root number | Set-2.8086 program to find Square Root of a number.8086 program to find the factorial of a number.8085 program to find the factorial of a number.8085 program to find square root of a number.8085 program to find square of a 8 bit number.

8085 program to find sum of digits of 8 bit number.8085 program to multiply two 8 bit numbers using logical instructions.8085 program to multiply two 8 bit numbers.8085 program to subtract two 8-bit numbers with or without borrow.8086 program to find sum of digits of 8 bit number.Subtract content of two ports by interfacing 8255 with 8085 microprocessor.Interface 8255 with 8085 microprocessor for 1вЂ™s and 2вЂ™s complement of a number.Interface 8255 with 8085 microprocessor for addition.Microprocessor | 8255 (programmable peripheral interface).ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.

Ic-7800 set mode data