Invariable All single bit Periodic modified checksum; or H.2.19.3.1 memory faults multiple checksum, or H.2.19.3.2 word protection with single bit redundancy H.2.19.8.2 Table R.1 (continued) Document Document Verdict Component Acceptable measures 2) 3) 4) Definitions reference reference 1) for applied For applied measure test 4.2 Variable DC fault Periodic static memory test, or H.2.19.6 memory word protection with single bit redundancy H.2.19.8.2 4.3 Addressing Stuck at Word protection with single bit parity H.2.19.18.2 (relevant to including the address, or variable and invariable memory) 5. Internal data Stuck at Word protection with single bit redundancy H.2.19.8.2 path DC fault Comparison of redundant CPUs by either: reciprocal comparison H.2.18.15 – independent hardware comparator, or H.2.18.3 – 5.1 Void 5.2 Wrong Word protection with single bit redundancy H.2.19.8.2 Addressing address including the address Table R.1 (continued) Document Document Verdict Component Fault/error Acceptable measures Definitions reference reference for applied For applied measure test 6 External 6.1 Data Word protection with multi-bit redundancy, or H.2.19.8.1 corruption H.2.19.4.1 Data H.2.18.2.2 CRC single word , or transfer redundancy, or – H.2.18.14 protocol test
Invariable All single bit Periodic modified checksum; or H.2.19.3.1 memory faults multiple checksum, or H.2.19.3.2 word protection with single bit redundancy H.2.19.8.2 Table R.1 (continued) Component 1) Acceptable measures 2) 3) 4) Definitions Document reference Document reference Verdict for applied measure For applied test 4.2 Variable DC fault Periodic static memory test, or H.2.19.6 memory word protection with single bit redundancy H.2.19.8.2 4.3 Addressing Stuck at Word protection with single bit parity H.2.19.18.2 (relevant to including the address, or variable and invariable memory) 5. Internal data Stuck at Word protection with single bit redundancy H.2.19.8.2 path DC fault Comparison of redundant CPUs by either: – reciprocal comparison H.2.18.15 – independent hardware comparator, or H.2.18.3 5.1 Void 5.2 Addressing Wrong address Word protection with single bit redundancy including the address H.2.19.8.2 Table R.1 (continued) Component Fault/error Acceptable measures Definitions Document reference Document reference Verdict for applied measure For applied test 6 External 6.1 Data Data corruption Word protection with multi-bit redundancy, or CRC – single word , or transfer redundancy, or protocol test H.2.19.8.1 H.2.19.4.1 H.2.18.2.2 H.2.18.14
od-2045_ed.2.0.docx