NQ5000P S L9TN Intel, NQ5000P S L9TN Datasheet - Page 197

• Manufacturer Part Number: NQ5000P S L9TN
• Manufacturer: Intel

Specifications of NQ5000P S L9TN

• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

Register Description
3.9.6
3.9.7
3.9.8
Intel® 5000P/5000V/5000Z Chipset Memory Controller Hub (MCH) Datasheet
THRTHI - Thermal Throttle High Register
THRTCTRL - Thermal Throttling Control Register
MCA - Memory Control Settings A
Additional miscellaneous control not reflected in other registers.
Device:
Function:
Offset:
Version:
Device:
Function:
Offset:
Version:
Device:
Function:
Offset:
Version:
31:28
27:15
7:0
7:2
Bit
Bit
Bit
1
0
Attr
Attr
Attr
RW
RW
RW
RW
RV
RV
16
1
66h
Intel 5000P Chipset, Intel 5000V Chipset, Intel 5000Z Chipset
16
1
67h
Intel 5000P Chipset, Intel 5000V Chipset, Intel 5000Z Chipset
16
1
58h
Intel 5000P Chipset, Intel 5000V Chipset, Intel 5000Z Chipset
Default
Default
Default
0h
0h
0h
0h
0
0
THRTHILM: Thermal Throttle High Limit
The highest level of throttling (that is, minimum number of activations). When
THRTCTRL.THRMODE=1, this level is applied whenever the temperature is above
Tmid. When THRTCTRL.THRMODE=0, this level is the ceiling of the hunting
algorithm of the closed loop throttling. The temperature being above Tmid has
priority over the Global Throttling Window enabling throttling (the higher throttling
level takes precedence).
This throttling will be enabled if THRTCTRL.THRMHUNT is set.
The maximum value this field can be initialized by software is 168 (decimal). This
corresponds to 672 activations per activation window and gives 100% BW.
The granularity of this field is 4 activations.
0: No throttling (unlimited activation)
1: 4 activations per activation window
2: 8 activations per activation window
168: 672 activations per activation window
If Software sets this value greater than 168, the chipset will cap the THRTHILM field
to 168. This field should be less than or equal to the THRTMID.THRTMIDLM.
Reserved
THRMODE: Thermal Throttle Mode
0: THRTSTS.THRMTHRT register is initialized by the Intel 5000P Chipset MCH such
that they vary in range between THRTMID and THRTHI above Tmid (staircase)
1: THRTSTS.THRMTHRT register field is “slammed” to THRTHI above Tmid.
THRMHUNT: Intelligent Thermal Throttle Enable
0: THRTSTS.THRMTHRT register is not enabled
1: THRTSTS.THRMTHRT register is enabled for the temperature to have any
influence on the throttle parameters. If THRMHUNT=0 only the GBLTHRT bit from
the Global Throttle Window can change the THRMTHRT register field.
TO: Starvation Timeout
A value of zero represents eight cycles. Each increment adds eight cycles.
Maximum is 128 cycles.
Reserved
Description
Description
Description
197