CP80617004119AES LBU3 Intel, CP80617004119AES LBU3 Datasheet - Page 111

• Manufacturer Part Number: CP80617004119AES LBU3
• Manufacturer: Intel

Specifications of CP80617004119AES LBU3

• Lead Free Status / RoHS Status: Compliant

Processor Configuration Registers
1.9.33
Datasheet
C1DTC - Channel 1 DRAM Throttling Control
B/D/F/Type:
Address Offset:
Default Value:
Access:
Size:
Programmable Event weights are input into the averaging filter. Each Event weight is an
normalized 8-bit value that the BIOS must program. The BIOS must account for burst
length and 1N/2N rule considerations. It is also possible for BIOS to take into account
loading variations of memory caused as a function of memory types and population of
ranks.
31:24
18:16
15:8
7:0
Bit
23
22
21
20
19
Access
RW-L-K
RW-L
RW-L
RW-L
RW-L
RW-L
RW-L
RO
RO
Default
Value
000b
00h
00h
00h
0b
0b
0b
0b
0b
Reserved
DRAM Throttle Lock (DTLOCK)
This bit secures the DRAM throttling control registers DT*EW
and DTC. Once a 1 is written to this bit, all of these
configuration register bits become read-only.
Reserved
DRAM Bandwidth Based Throttling Enable (DBBTE)
0 = Bandwidth Threshold (WAB) is not used for throttling.
1 = Bandwidth Threshold (WAB) is used for throttling.
If both Bandwidth based and thermal sensor based throttling
modes are on and the thermal sensor trips, weighted
average WAT is used for throttling.
DRAM Thermal Sensor Trip Enable (DTSTE)
0 = Memory controller throttling is not initiated when the
1 = Memory controller throttling is initiated when the
Reserved
Reserved
Weighted Average Bandwidth Limit (WAB)
Average weighted bandwidth allowed per clock during for
bandwidth based throttling. The memory controller does not
allow any transactions to proceed on the System Memory
bus if the output of the filter equals or exceeds this value.
Weighted Average Thermal Limit (WAT)
Average weighted bandwidth allowed per clock during for
thermal sensor enabled throttling. The memory controller
does not allow any transactions to proceed on the System
Memory bus if the output of the filter equals or exceeds this
value.
0/0/0/MCHBAR
6B4-6B7h
00000000h
RO; RW-L-K; RW-L
32 bits
memory controller thermal sensor trips.
memory controller thermal sensor trips and the Filter
output is equal to or exceeds thermal threshold WAT.
Description
111