8051 REFERRENCE MANUALMS8PSPTI PKIPTOPXDBITSYMBOL FUNCTIONP7ReservedReservedReservedDefines the Serial Port intempt priorty level. PS1 programs itto the higher priority levelDefines the Timer1intempt prionity level. PTI1 programsitto the higher priority level.PAPSPTIDefines the Etenal intemupt 1 priarity level. PXI1 programs it to the higher priorty level.Enables or disabies the Tiner O intempt priorty level. PTO1 programs to the higher priorty level.P2PX1P.1PTOPOPXDDefines the Etenal intemupt O priority level. PADr1 programs it to the higher priority level.auFigure 19. Internupt Prierity RegisterINTERRUPT PRIORITY & INTERRUPT VECTOR ADDRESS TABLESourceIEDTFOVector Address0003HContainsJMP OBO0 RETI000BH0013H001BHJMP OB80 RETIJMP OC00 RETIJMP OC80 RETIJMP OD00 RETIIE1TF1RI+TI0023HETI EXIEAESETDEXDBITSYVBOL FUNCTIONE7EADisables alintenupts. HEA-O, no intenupt wll be acknowiedged. IF EA1, each intenuptsource is indvidually enabled or disabled by seting or clearing ts erable beReservedESReservedEnables or disables the Sefal Pat intamupt. ES-0, the Serial Port intemupt is disabled.Erables or disabies the Timer 1 Overfow intemupt I ETIO. the Timer 1 intemupt is disabled.Erables or disables Edemal irtemupt 1. FEX-0, Edemal interupt tis diabledEnables or disables the Timer 0Overfow intemupt IETD-O, the Teer Dintemrupt is disabledEnables or disables Extemal intemupt 0. HEXD-. Etemal intemupt Dis disabled.E4ESETIEXIETOEXOFigure 18. Interrupt Enable Register JE) Configure the IE and IP registers to enable Timer 1 and External Interrupt 1, but Timer 1 with ahigher interrupt priority than External Interrupt 1.A. Draw the registers and show your values in hex, next to each registerB. How is Timer 1 overflow detected and where will the execution jump when the interrupt isserviced?C. While External Interrupt 1 subroutine is running Timer 1 overflows, causing a nestedinterrupt. What will happen?

An interrupt is an event (either external or internal) that interrupts the CPU to inform that the…

Configure the IE and IP registers to enable Timer 1 and External Interrupt 1, but Timer 1 with a higher interrupt priority than External Interrupt 1. A. Draw the registers and show your values in hex, next to each register B. How is Timer 1 overflow detected and where will the execution jump when the interrupt is serviced? C. While External Interrupt 1 subroutine is running Timer 1 overflows, causing a nested interrupt. What will happen?

Configure the IE and IP registers to enable Timer 1 and External Interrupt 1, but Timer 1 with a higher interrupt priority than External Interrupt 1. A. Draw the registers and show your values in hex, next to each register B. How is Timer 1 overflow detected and where will the execution jump when the interrupt is serviced? C. While External Interrupt 1 subroutine is running Timer 1 overflows, causing a nested interrupt. What will happen?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Discussion: 1. Explain what happens when the instruction sequence below is executed. LAHF MOV [BX+DI] , AH 2. What operation is performed by the instruction sequence that follows? MOV AH, [BX+SI] SAHF 3. What instruction should be executed to ensure that the carry flag is in the set state ? the reset state? 4. Which instruction when executed disables the interrupt interface?
Supnorting.cxcentions &interruats Select True/False (T/F) for each statement. Exception usually refers to an event outside of the CPU and interrupt refers to an event inside the CPU. ISelect The CPU checks for exceptions/interrupts after every assembly instruction to get to them tast. Select With polled interrupts, the hardware is responsible to identify the source of the event. Select) With vectored interrupts, the hardware is responsible to identify the source of the event. I Setect)
Q2/ Fill in the following blanks (answer Five only): 1. The type of addressing mode used for the instruction MOV AX, [BX + 08 H] called 2. The PLC program is executed as part of a repetitive process referred to as a 3. For a 8-bit Arduino, the analogWrite value that represent 40% duty cycle is 4. The number of instruction codes that are pre-fetched by the queue is up to 5. There are two fundamental types of memory used in Allen Bradley PLCs memory. 6. Segment registers are located in bytes. and unit inside the 8086 MP. Q3/ Answer with True or False with error correction, if any, for Five of the following: (20 Marks) 1. Input, program, and output scans are separate, independent functions in PLC. 2. The physical address in 8086 MP is just a 16 bit number written directly in the instruction. 3. The address in Arduino may be a combination of the rack number and the slot number. 4. The number of address and data lines of 8086 MP are 20 and 16 respectively. 5. The operands in both source and…
When an XIC instruction is cleared: a. This enables the next instruction (the rung-condition-out is true). b. This disables the next instruction (the rung-condition-out is false). c. The rung-condition-out is not scanned. d. The rung-condition-out is has to have an OTL.
7.a. Weight and humidity are examples ofA. discrete outputs.B. discrete inputs.C. voltage signals.D. analog quantities. 7.b. What statement best describes the CPU scan?A. The data table is read, the inputs are updated, and the logic is solved.B. The fault table is cleared, the inputs are read, and the outputs are updated.C. The program scans for a "logic OK"; if the bit is set, the scan progresses.D. The input status is read, the program logic is solved, and the outputs are updated.
Please circle whether following statements are True or false. (a) In Moore machines, more logic may be necessary to decode state into outputs—more gate delays after clock edge. True or False ? (b) The output of a Mealy state machine changes synchronously True or False ?
..The instruction SUB AX, BX, gives the result of ... In register. Explain the given question with an example. Not just copy paste answer.
QUESTION 46 How many different types of interrupt service routines (ISRS) can be supported by the 8088? 2 256
a) What a stack? Please explain how it is different from a FIFO (First-In-First-Out). b) What is an ISR? Please describe how the ARM processors locate and execute the ISR for the SyStick timer interrupt.
Internal operations of a microcontroller can be synchronized by? Select one: a. Using external and internal interrupts. b. using clock circuits that produce clock pulses. C. using general-purpose registers. d. Using Timer/Counter Mode Control (TMOD) e. Using Timer/Counter Control (TCON)
1- Identify the addressing mode for: MOV CX, [1234] 2-The instruction that subtracts 1 from the contents of the specified register/memory location is a. INC b. SUBB C. SUB d. DEC
Interrupt Vector is basically a O A. indicator to CPU when interrupt occurs O B. counter for interrupt occurs O C. address where the CPU jumps when an interrupt occurs O D. timer for interrupt to happen