Intel CONTROLLERS 413808 - Manual (Page 757)

Intel ® 413808 and 413812 I/O Controllers in TPER Mode
October 2007 Developer’s Manual
Order Number: 317805-001US 757
PMON Unit—Intel ® 413808 and 413812
16.5.7 PMON Events
PMON events can be selected for any of the counters. Each event is defined by a
unique Event Selection Code (ESC) as defined below. For events which are duplicated
within 4138xx with duplicate units (ADMA, SAS ports, etc.) source select field is used to
select the unit the corresponding event is associated with. Event types are designated
by Type, Occurrence only (O), Duration only (D) or events that can be selected as
either (OD). Events must be used according to the defined type for proper operation.
Use of a Duration only event, as an Occurrence event, results in unpredictable
behavior.
16.5.7.1 Null Event
The Null Event is not an actual event. When used as an increment or decrement event,
no action takes place. When used as Command Trigger, it causes command to be
triggered immediately after command register is written to by software. The Command
Trigger Indicator status bit is NOT set when the Null Event is the Command Trigger. Also
called False Event.
Table 496. Event Selection Code Summary
ESC Range Description
000-0FF
PMON Counters Internal Events
• 000 = Null (False) Event
• 001 - 00F = Clock Domains
• 010 - 020 = Threshold Events
• 021 - 0FF = Reserved for PMON internal events
100-3FF Reserved
400-4FF DDR-II SDRAM Memory Controller
500-5FF Reserved
600-67F Reserved
680-6FF PCI-X ATU
700-7FF PCI Express ATU
800-87F North Internal XSI Bus
880-8FF South Internal XSI Bus
900-FFF Reserved
Table 497. Intel
®
413808 and 413812 I/O Controllers in TPER Mode PMON Clock Events
Event
Selection
Code
(Hex)
Event Type Comment
000 Null Event N/A Not an actual event