Datasheet

Intel
®
E8870 Scalable Node Controller (SNC) Datasheet 3-63
Configuration Registers
3.10.17 HPADDR: Hot Page Index
This register is used in conjunction with the HPDATA register to access the Hot Page Counter
Array. It contains the index used to access the array. If the most significant bit is set, the index is
automatically incremented after each access to the HPDATA register. The size of the Hot Page
counter array is 2KB.
3.10.18 HPDATA: Hot Page Data
This register is used in conjunction with the HPADDR register to access the Hot Page Counter
Array. When read, the contents of the counter array entry as indicated by HPADDR is returned.
When written, the counter array entry will be updated.
3.10.19 HPCMP: Hot Page Count Compare
This register contains the maximum comparison value for the AutoRange feature. It also is used in
the update mode to capture the largest count that occurred during the sample interval. The
comparison is true when the count is greater than the compare value in the register; e.g. for a
compare value of “0”, the comparison will be true when the count is “1”.
Device: NodeID
Function: 3
Offset: 64h
Bit Attr Default Description
15 RW 0
Array Index Auto-increment
If set, the Hot Page counter array index is automatically incremented to the
next address each time after the Hot Page Data register (HPDATA) is
accessed. In this mode, the entire Hot Page counter array can be read without
having to modify the index.
14:11 RV 0 Reserved
10:0 RW 0 Hot Page Counter Array Index.
Device: NodeID
Function: 3
Offset: 68h
Bit Attr Default Description
31:0 RW 0 Hot Page Data.
Device: NodeID
Function: 3
Offset: 6Ch
Bit Attr Default Description
31:0 RW FFFF_FFFFh Compare Value.