Compaq ECQD2KCTE Laptop User Manual


 
Waivers and Implementation-Dependent Functionality E–11
Table E–3: Bit Summary of PMCTR Register for Windows NT Alpha
Bits Name Meaning
63–48 CTR0 Counter 0 value
47–32 CTR1 Counter 1 value
31 PCSEL0 Counter 0 selection:
30
Must be set to one
1
29–16 CTR2 Counter 2 value
15–14 CTL0 Counter 0 control:
13–12 CTL1 Counter 1 control:
11–10 CTL2 Counter 2 control:
Value Meaning
0 Cycles
1 Issues
Value Meaning
0 Counter disable, interrupt disable
1 Counter enable, interrupt disable
2 Counter enable, interrupt at count 65536
3 Counter enable, interrupt at count 256
Value Meaning
0 Counter disable, interrupt disable
1 Counter enable, interrupt disable
2 Counter enable, interrupt at count 65536
3 Counter enable, interrupt at count 256
Value Meaning
0 Counter disable, interrupt disable
1 Counter enable, interrupt disable
2 Counter enable, interrupt at count 16384
3 Counter enable, interrupt at count 256