Microprocessor Reference Manual

viii 21264/EV68A Hardware Reference Manual
7.11.2.1 GCLK ........................................................... 7–19
7.11.2.2 Differential 21264/EV68A Clocks ...................................... 7–19
7.11.2.3 Nominal Operating Frequency . . ...................................... 7–19
7.11.2.4 Power-Up/ResetClocking............................................ 7–20
8 Error Detection and Error Handling
8.1 DataErrorCorrectionCode.................................................. 8–2
8.2 IcacheDataorTagParityError............................................... 8–2
8.3 DcacheTagParityError.................................................... 8–2
8.4 DcacheDataSingle-BitCorrectableECCError .................................. 8–3
8.4.1 LoadInstruction....................................................... 8–3
8.4.2 Store Instruction (Quadword or Smaller) . . . ................................. 8–4
8.4.3 DcacheVictimExtracts ................................................. 8–4
8.5 DcacheStoreSecondError ................................................. 8–4
8.6 DcacheDuplicateTagParityError............................................ 8–4
8.7 BcacheTagParityError .................................................... 8–5
8.8 ControllingBcacheBlockParityCalculation..................................... 8–5
8.9 BcacheDataSingle-BitCorrectableECCError .................................. 8–5
8.9.1 IcacheFillfromBcache................................................. 8–5
8.9.2 DcacheFillfromBcache ................................................ 8–6
8.9.3 BcacheVictimRead.................................................... 8–7
8.9.3.1 BcacheVictimReadDuringaDcache/BcacheMiss ....................... 8–7
8.9.3.2 BcacheVictimReadDuringanECBInstruction........................... 8–7
8.10 Memory/SystemPortSingle-BitDataCorrectableECCError........................ 8–7
8.10.1 IcacheFillfromMemory................................................. 8–7
8.10.2 DcacheFillfromMemory................................................ 8–8
8.11 BcacheDataSingle-BitCorrectableECCErroronaProbe......................... 8–9
8.12 Double-BitFillErrors....................................................... 8–9
8.13 ErrorCaseSummary....................................................... 8–10
9 Electrical Data
9.1 ElectricalCharacteristics.................................................... 9–1
9.2 DCCharacteristics ........................................................ 9–2
9.3 Power Supply Sequencing and Avoiding Potential Failure Mechanisms ............... 9–5
9.4 ACCharacteristics......................................................... 9–6
10 Thermal Management
10.1 OperatingTemperature..................................................... 10–1
10.2 HeatSinkSpecifications.................................................... 10–3
10.3 ThermalDesignConsiderations .............................................. 10–6
11 Testability and Diagnostics
11.1 TestPins................................................................ 11–1
11.2 SROM/SerialDiagnosticTerminalPort......................................... 11–2
11.2.1 SROMLoadOperation.................................................. 11–2
11.2.2 SerialTerminalPort.................................................... 11–2
11.3 IEEE 1149.1 Port. . . ....................................................... 11–3
11.4 TestStat_HPin ........................................................... 11–4
11.5 Power-UpSelf-TestandInitialization .......................................... 11–5
11.5.1 Built-inSelf-Test....................................................... 11–5