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E–16 Alpha Architecture Handbook
Table E–7: 21164 Select Desired Events for OpenVMS Alpha and DIGITAL
UNIX
Bits Name Meaning
63:32 MBZ
31 PCSEL0 Counter 0 selection:
30:25 MBZ
24:22 CBOX2 CBOX2 event selection (only has meaning when event selection field
PCSEL2 is value <15>; otherwise MBZ). CBOX2 described in Table E–
16.
21:19 CBOX1 CBOX1 event selection (only has meaning when event selection field
PCSEL1 is value <15>; otherwise MBZ). CBOX1 described in Table E–
15.
18:8 MBZ
7:4 PCSEL1 Counter 1 event selection. PCSEL1 described in Table E–13.
3:0 PCSEL2 Counter 2 event selection. PCSEL2 described in Table E–14.
Table E–8: 21164PC Select Desired Events for OpenVMS Alpha and DIGITAL
UNIX
Bits Name Meaning
63:32 MBZ
31
PCSEL0
Counter 0 selection:
30:14 MBZ
13:11
PM1_MUX
PM1_MUX event selection (only has meaning when event selec-
tion field PCSEL2 is value <15>; otherwise MBZ). PM1_MUX is
described in Table E–18.
10:8
PM0_MUX
PM0_MUX event selection (only has meaning when event selec-
tion field PCSEL1 is value <15>; otherwise MBZ). PM0_MUX is
described in Table E–17.
Value Meaning
0Cycles
1 Issues
Value Meaning
0Cycles
1 Issues