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IDT49C460 Datasheet(PDF) 14 Page - Integrated Device Technology |
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IDT49C460 Datasheet(HTML) 14 Page - Integrated Device Technology |
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14 / 32 page  11.6 14 IDT49C460/A/B/C/D/E 32-BIT CMOS ERROR DETECTION AND CORRECTION UNIT MILITARY AND COMMERCIAL TEMPERATURE RANGES SC OUTPUTS The tables below indicate how the SC0–7 outputs are generated in each control mode of various CODE IDs (Internal Control Mode not applicable). Correct/ CODE ID1,0 Detect 00 10 11 SC0 ← PH0 ⊕ C0 PH1 ⊕ C0 PH2 ⊕ CB0 SC1 ← PA ⊕ C1 PA ⊕ C1 PA ⊕ CB1 SC2 ← PB ⊕ C2 PB ⊕ C2 PB ⊕ CB2 SC3 ← PC ⊕ C3 PC ⊕ C3 PC ⊕ CB3 SC4 ← PD ⊕ C4 PD ⊕ C4 PD ⊕ CB4 SC5 ← PE ⊕ C5 PE ⊕ C5 PE ⊕ CB5 SC6 ← PF ⊕ C6 PF ⊕ C6 PF ⊕ CB6 SC7 ← —PF ⊕ C7 PG ⊕ CB7 Final Syndrome Partial Syndrome Final Syndrome 2584 tbl 17 2584 tbl 19 CODE ID1,0 Generate 00 10 11 SC0 ← PH0 PH1 PH2 ⊕ CB0 SC1 ← PA PA PA ⊕ CB1 SC2 ← PB PB PB ⊕ CB2 SC3 ← PC PC PC ⊕ CB3 SC4 ← PD PD PD ⊕ CB4 SC5 ← PE PE PE ⊕ CB5 SC6 ← PF PF PF ⊕ CB6 SC7 ← —PF PG ⊕ CB7 Final Check Bits Partial Check Bits Final Check Bits Diagnostic Correct/ CODE ID1,0 Detect 00 10 11 SC0 ← PH0 ⊕ DL0 PH1 ⊕ DL0 PH2 ⊕ CB0 SC1 ← PA ⊕ DL1 PA ⊕ DL1 PA ⊕ CB1 SC2 ← PB ⊕ DL2 PB ⊕ DL2 PB ⊕ CB2 SC3 ← PC ⊕ DL3 PC ⊕ DL3 PC ⊕ CB3 SC4 ← PD ⊕ DL4 PD ⊕ DL4 PD ⊕ CB4 SC5 ← PE ⊕ DL5 PE ⊕ DL5 PE ⊕ CB5 SC6 ← PF ⊕ DL6 PF ⊕ DL6 PF ⊕ CB6 SC7 ← —PF ⊕ DL7 PG ⊕ CB7 Final Syndrome Partial Syndrome Final Syndrome Diagnostic CODE ID1,0 Generate 00 10 11 SC0 ← DL0 DL0 DL32 SC1 ← DL1 DL1 DL33 SC2 ← DL2 DL2 DL34 SC3 ← DL3 DL3 DL35 SC4 ← DL4 DL4 DL36 SC5 ← DL5 DL5 DL37 SC6 ← DL6 DL6 DL38 SC7 ← — DL7 DL39 Final Check Bits Partial Check Bits Final Check Bits 2584 tbl 20 2584 tbl 18 CODE ID1,0 PASSTHRU 00 10 11 SC0 ← C0 C0 CB0 SC1 ← C1 C1 CB1 SC2 ← C2 C2 CB2 SC3 ← C3 C3 CB3 SC4 ← C4 C4 CB4 SC5 ← C5 C5 CB5 SC6 ← C6 C6 CB6 SC7 ← — C7 CB7 2584 tbl 21 Table 12. SC0-7 Outputs For Different Control Modes |
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