GGSIPU Mid-Term-1 April 2022 Solution Microprocessors by Ravinder Nath Rajotiya - April 11, 2022April 11, 20220 Solution MT-1 April 2022 ETEE 310 Microprocessors and Microcontrollers Time 1.5 Hours MM: 30 Q1. Differentiate between PC and SP Sl PC SP 1 Program counter (PC) points to the next instruction in memory to be executed Stack Ponter(SP) points to the top of the stack memory from where an item could be accessed 2 It is auto incremented for normal sequential program Incremented for PUSH and for POP operation an item accessed and the SP decremented for stack-up configuration Q1. (b) Briefly describe different memory technologies used in microprocessor system. A microprocessor system does not contain any memory internally other than the set
Timing Diagram 8085 8085 Microprocessor by Ravinder Nath Rajotiya - September 23, 2021February 23, 20220 Timing Diagram 8085 Microprocessor A timing diagram of a microprocessor depicts graphically the activities that are taking place at different instants of time (T states) inside the microprocessor. As discussed previously, microprocessor fetches an instruction from the memory, decodes it, fetches the operands if required and then executes the instruction. An execution of a instruction may take one to six machine cycles and a machine cycle may contain three or more T states. Before we study the timing diagram, the following terminologies should be clear. Instruction cycle – It is the total time by the microprocessor to fetch, decode, fetch operands and execute the instruction. Machine Cycle – It is time taken by the processor in completing the single task, for example fetching an OPCODE,