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Interrupts of 8085
Interrupt I/O ,[object Object],[object Object],[object Object],[object Object],[object Object]
8085 Interrupts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Interrupt pins of 8085
Types of Interrupts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Interrupt process ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example: Blinking LED Display with Interrupt-based Display-Pattern change  8085 Input Switches LED Display RST 7.5 (Display-Pattern ) Interrupt Switch Peripheral-mapped I/O Interrupt I/O
Interrupt Service Routine (ISR) ,[object Object],[object Object],[object Object]
Interrupt Vector Table of 8085 Please Note:  INTR  is a  non-vectored  interrupt 002CH RST 5.5 0034H RST 6.5 003CH RST 7.5 0024H TRAP Interrupt Vector Interrupt
Using Vectored Interrupts of 8085 ,[object Object],[object Object],[object Object],[object Object]
Using Vectored Interrupts  ,[object Object],[object Object],[object Object],[object Object]
SIM Instruction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Accumulator bit pattern for SIM 0  =  Available ,  1  =  Masked Mask Set Enable, 0 = bits 0-2 ignored   1 = mask is set IF 1, RESET RST 7.5  If 1, bit 7 is output to serial output data latch Serial Output Data, ignored if bit 6 = 0 M5.5 M6.5 M7.5 MSE R7.5 XXX SDE SOD D0 D1 D2 D3 D4 D5 D6 D7
8085 Interrupt process for Vectored-Interrupts ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],8085 Interrupt process for Vectored-Interrupts (Cont.)
[object Object],[object Object],[object Object],8085 Interrupt process for Vectored-Interrupts (Cont.)
Interrupt Programming ,[object Object],[object Object],[object Object],[object Object]

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1206 Interrupts Of 8085

  • 2.
  • 3.
  • 5.
  • 6.
  • 7. Example: Blinking LED Display with Interrupt-based Display-Pattern change 8085 Input Switches LED Display RST 7.5 (Display-Pattern ) Interrupt Switch Peripheral-mapped I/O Interrupt I/O
  • 8.
  • 9. Interrupt Vector Table of 8085 Please Note: INTR is a non-vectored interrupt 002CH RST 5.5 0034H RST 6.5 003CH RST 7.5 0024H TRAP Interrupt Vector Interrupt
  • 10.
  • 11.
  • 12.
  • 13. Accumulator bit pattern for SIM 0 = Available , 1 = Masked Mask Set Enable, 0 = bits 0-2 ignored 1 = mask is set IF 1, RESET RST 7.5 If 1, bit 7 is output to serial output data latch Serial Output Data, ignored if bit 6 = 0 M5.5 M6.5 M7.5 MSE R7.5 XXX SDE SOD D0 D1 D2 D3 D4 D5 D6 D7
  • 14.
  • 15.
  • 16.
  • 17.

Editor's Notes

  1. |cx