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Arsitektur dan Organisasi Komputer: Daisy Chain, Bus Arbiter, PIC 8259 A

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materi Arkom (arsitektur komputer) & Orkom (organisasi komputer) tentang: daisy chain, bus arbiter, pic 8259A.
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Arsitektur dan Organisasi Komputer: Daisy Chain, Bus Arbiter, PIC 8259 A

  1. 1. REFERENSI MATERI Organisasi Komputer Edisi ke-5, diteriemahkan oleh Pernerbit ANDI dan McGraw-Hill Education William Stallings, Computer Organization and Architecture, 8"' Edition D. A.Godse A. P.Godse, Introduction to Microprocessors, Technical Publications http: //www. ece. unm. edu/ ~iimp/3 l O/ slides/8086_interrupts. htm| http: //en. wikipedia. org/ wiki/ |nte| __8259 http: / / www. electronics. dit. ie / staff / tscarff / Interrupts / interrupts. htm
  2. 2. Daisy Chain DATA BUS INTERRUPT ACKNOWLEDGE lNTERRUPT REQUEST Block diagram pada skema hardware polling Modul l/ O saling CPU memberi J". terhubung sinyal 'acknowledge' terhadap interrupt request (IR) RM l Hardware poll 0
  3. 3. ACKNOWLEDGE INTERRUPT er
  4. 4. :: ll: : ' l J'
  5. 5. ARBITRASI BUS ~a KONTROL BUS IR LINE
  6. 6. INTR l I : arnan. l FIG-jilat? Damar; Q Pñuñr' A L A I 4 AINTA l Block Diagram pada Arbitrasi Bus INTR N I lavnlla , Vi l, .o'. 'I= L1'i Pikun? ' A 'l `| NTA N
  7. 7. INTERRUPT LINE BUS ARBITER
  8. 8. _IJIN _lhh _l. ._l_ : » tr* @I »a
  9. 9. .x'* " . ,_lII 'If f'lr ; x gñ . i -J _al . ._ v; ll vLAl-*2: V4'l hilxwIJ- IIII' , .~"`~ QII I cs no WE ~ ~ CASU ' *mm 7// ff/ /a/ m ' , . c: 'i' ' itu, ~- . [I m? ,mlm 15.5 IPGIR' INTA r m m1 CAS 2 SP/ EN ""A . I "r'> "w f x n ^ nf) 'rs' U. I LLñIltxoL-. .x (n u Ji. n II` I il . Arli l/ A" I , lit `>11, _ '. `. . ' f , ' o . I'd l' l '. t. I "-. .. "I . . 'I ° x
  10. 10. DIAGRAM 8259A PIC Perangkat Luar 00 Perangkat Luar 01 Perang kaL Luar 07 Perangkat Luar O8 8086 Processor Master 825911 Perang kal Luar 63 slave 8259A
  11. 11. I ami _V . tama e- I L ; l I ç . . ; _.. ... ... .; &intim-si l . mangut-te jl; _Lt #Manggala I LLLGEELJXIIHZ-IIJDQHIEIILI-Xil
  12. 12. MODE PADA INTERRUPT INTEL 8259A Modul yang telah dilayani interupsinya akan menempati Permintaan interupsi prioritas terendah dengan prioritas dari (IRO) hingga (IR7) FULLLY NESTED ROTAUNG Prioritas diprogram untuk modul I/ O tertentu secara spesial SPECIAL MASK
  13. 13. ISR UPDATE PROCEDURE WITH ROTATING PRIORITY CONFIGURED IS7 IS6 ISS IS4 IS3 IS2 IS1 ISO ISR STATUS Before PRIORITY a H u a u IR4 accepted Lowest Priority Hwtcst Priority IS7 IS6 ISS IS4 IS3 IS2 IS1 ISO ISRSTATUS After PRIORITY a n a a IR4 accepted Highest Priority Lowest Priority

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