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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UT54ACS630 датащи(PDF) 2 Page - Aeroflex Circuit Technology |
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UT54ACS630 датащи(HTML) 2 Page - Aeroflex Circuit Technology |
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2 / 10 page  2 FUNCTION TABLES CONTROL FUNCTIONS CHECKWORD GENERATION ERROR SYNDROME CODES ERROR FUNCTIONS Memory Cycle Control S1 S0 EDAC Function Data I/O Checkword Error Flags SEF DEF WRITE Low Low Generates Checkword Input Data Output Checkword Low Low READ Low High Read Data and Check- word Input Data Input Checkword Low Low READ High High Latch and Flag Error Latch Data Latch Checkword Enabled Enabled READ High Low Correct Data Word and Generate Syndrome Bits Output Correction Data Output Syndrome Bits Enabled Enabled Check word bit 16-bit data word 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 CB0 X X X X X X X X CB1 X X X X X XXX CB2 X XX XXX X X CB3 X X X XX XX X CB4 X XX XX XX X CB5 XX XX XXX X Syndrome error code Error locations DB CB No Error 01 234 5678 9 10 11 12 13 14 15 0123 45 CB0 L L H L L HHH L L L H H L HH L HHH HH H CB1 L H L LH L L HL H H L H HLH H LH H H H H CB2 H L L HL LHLH LH HL H H L H HLH H H H CB3 L L L HH H L L H H L L L HHH HHH L H H H CB4 H H H L L L L L H HHH H L L L HHHH L H H CB5 H H H H H H H H L LLLL LLL HHHH H L H Total number of errors Error Flags Data Correction 16-bit data 6-bit check word SEF DEF 00LL Not applicable 1 0 H L Correction 0 1 H L Correction 1 1 H H Interrupt 2 0 H H Interrupt 0 2 H H Interrupt |
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