D.26

Restriction 30 : HW_MTPR and HW_MFPR to the Cbox CSR

D–15

D.27

Restriction 31 : I_CTL[VA_48] Update

D–17

D.28

Restriction 32 : PCTR_CTL Update

D–17

D.29

Restriction 33 : HW_LD Physical/Lock Use

D–18

D.30

Restriction 34 : Writing Multiple ITB Entries in the Same PALcode Flow

D–18

D.31

Guideline 35 : HW_INT_CLR Update

D–18

D.32

Restriction 36 : Updating I_CTL[SDE]

D–18

D.33

Restriction 37 : Updating VA_CTL[VA_48]

D–18

D.34

Restriction 38 : Updating PCTR_CTL

D–18

D.35

Guideline 39: Writing Multiple DTB Entries in the Same PAL Flow

D–19

D.36

Restriction 40: Scrubbing a Single-Bit Error

D–19

D.37

Restriction 41: MTPR ITB_TAG, MTPR ITB_PTE Must Be in the Same Fetch Block

D–21

D.38

Restriction 42: Updating VA_CTL, CC_CTL, or CC IPRs

D–21

D.39

Restriction 43: No Trappable Instructions Along with HW_MTPR

D–21

D.40

Restriction 44: Not Applicable to the 21264/EV67

D–21

D.41

Restriction 45: No HW_JMP or JMP Instructions in PALcode

D–21

D.42

Restriction 46: Avoiding Live locks in Speculative Load CRD Handlers

D–22

D.43

Restriction 47: Cache Eviction for Single-Bit Cache Errors

D–22

D.44

Restriction 48: MB Bracketing of Dcache Writes to Force Bad Data ECC and Force Bad Tag Parity

 

D–24

 

E 21264/EV67-to-Bcache Pin Interconnections

E.1

Forwarding Clock Pin Groupings

E–1

E.2

Late-WriteNon-Bursting SSRAMs

E–2

E.3

Dual-Data Rate SSRAMs

E–3

Glossary

Index

x

Alpha 21264/EV67 Hardware Reference Manual

Page 10
Image 10
Compaq specifications 21264/EV67-to-Bcache Pin Interconnections, Glossary Index