Configuring VME Option Boards2-15014–001867Table 2–9 Default Jumper Settings for VDA/255 Boards (All Board Positions)Jumper Pins Status FunctionE3 2–3 In Bus grant 0E4 2–3 In Bus grant 1E5 2–3 In Bus grant 2E6 1–2 In Bus grant 33–4 In Bus grant 3 (selected)E7 Out Bus request Level 0E8 Out Bus request Level 1E9 Out Bus request Level 2E10 In Bus request Level 3E11 1–2 Out Interrupt request 13–4 Out Interrupt request 25–6 Out Interrupt request 37–8 In Interrupt request 4 (selected)9–10 Out Interrupt request 511–12 Out Interrupt request 613–14 Out Interrupt request 7E12 1–2 Out PROM size 275122–3 In PROM size 27256E13 In DP RAM program spaceE14 In DP RAM data spaceE15 Out DP RAM I/O spaceE16 Out DP RAM standard spaceE17 In DP RAM supervisor spaceE18 In Watchdog timerE19 Out SYSFAILE21 1–2 Out Address bit A133–4 Out Address bit A125–6 Out Address bit A117–8 Out Address bit A109–10 Out Address bit A911–12 Out Address bit A813–14 Out Address bit A7 (unused)15–16 Out Address bit A6 (unused)E22 1–2 Out Factory reserved3–4 In No read/write test5–6 Out Factory reserved7–8 Out Test/clear static RAM9–10 Out Clear RAMs11–12 Out Factory reserved13–14 In 32-bit long words15–16 Out Factory reservedE23 In Address bit A15E24 In Address bit A14E25 Out Interrupt acknowledgeE26 In Interrupt acknowledgeE27 In Interrupt acknowledgeE28 Out 12.5 ms timeoutE29 Out 25.0 ms timeoutE30 In 50.0 ms timeoutE31 Out 100.0 ms timeoutNotation IndicatesIn Jumper installed.Out Jumper removed.(Continued)
