NQ5000P S L9TN Intel, NQ5000P S L9TN Datasheet - Page 200

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

Specifications of NQ5000P S L9TN

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

3.9.12
Table 3-40. Host to FB-DIMM Gear Ratio Mux Select
3.9.13
200
a. For 4:5 gear ratio, software should use either conservative or aggressive mode for all the
b. Ignored by MGr registers in the 5:4 mode.
HOSTTOFBDGRCFG: Host to FB-DIMM Gear Ratio
Configuration
This register consists of eight nibbles of mux select data for the proper selection of
gearing behavior on the Host to FB-DIMM path (south bound).
a. For 4:5 gear ratio, software should use either conservative or aggressive mode for all the
GRFBDVLDCFG: FB-DIMM Valid Configuration
This register provides valid signals to assert data in the FB-DIMM side for various
gearing ratios. It primarily affects the southbound data path for 4:5 gearing and
determines when a NOP packet is to be inserted into the FB-DIMM.
Notes:
Notes:
Device:
Function:
Offset:
Version:
Device:
Function:
Offset:
Version:
31:0
FSB:Memory Frequency
respective memory gearing registers (no mix and match).
respective memory gearing registers (no mix and match).
7:0
Bit
Bit
RWST
333:333
267:267
400:400
333:267
267:333
267:333
RWST
Attr
Attr
16
1
168h
Intel 5000P Chipset, Intel 5000V Chipset, Intel 5000Z Chipset
16
1
16Ch
Intel 5000P Chipset, Intel 5000V Chipset, Intel 5000Z Chipset
11111111h
Default
Default
0h
HSTFBDGRMUX: Host to FB-DIMM Clock Gearing mux selector.
Eight nibbles of mux select for FSB/core to memory/DDR2 geared clock
boundary crossing phase enables.
Refer to
FBDVLDMUX: FB-DIMM Data Valid Mux selector.
Determines which valid host cycle to insert NOP. Refer
programming details. This primarily affects the 4:5 gearing ratio.
Intel® 5000P/5000V/5000Z Chipset Memory Controller Hub (MCH) Datasheet
4:5 (conservative)
4:5 (aggressive)
Gear Ratio
Table 3-40
1:1
5:4
a
for the programming details.
Description
Description
11111111h
00004323h
00023230h
00023023h
Value
Register Description
toTable 3-41
for the