Intel i7-3612QM AV8063801130704 ユーザーズマニュアル

84

Datasheet, Volume 1

SM_RCOMP[2:0]

System Memory Impedance Compensation:  I/O

A

SM_VREF

DDR3/DDR3L/DDR3L-RS Reference Voltage: This signal is 

used as a reference voltage to the DDR3/DDR3L/DDR3L-RS 

controller.

I

A

SA_DIMM_VREFDQ
SB_DIMM_VREFDQ

Memory Channel A/B DIMM DQ Voltage Reference: These 

output pins are connected to the DIMMs, and are programmed to 

have a reference voltage with optimized margin.
The nominal source impedance for these pins is 150 Ω.
The step size is 7.7 mV for DDR3 (with no load) and 6.99 mV for 

DDR3L/DDR3L-RS (with no load).

O

A

CFG[17:0]

Configuration Signals:
The CFG signals have a default value of '1' if not terminated on the 

board. 

• CFG[1:0]: Reserved configuration lane. A test point may be 

placed on the board for this lane.

• CFG[2]: PCI Express* Static x16 Lane Numbering Reversal.

— 1 = Normal operation

— 0 = Lane numbers reversed

• CFG[3]: Reserved
• CFG[4]: eDP enable

— 1  =  Disabled

— 0  =  Enabled

• CFG[6:5]: PCI Express* Bifurcation: 

— 00 = 1 x8, 2 x4 PCI Express*

— 01 = reserved

— 10 = 2 x8 PCI Express*

— 11 = 1 x16 PCI Express*

• CFG[17:7]: Reserved configuration lanes. A test point may be 

placed on the board for these pins.

I

CMOS

PM_SYNC

Power Management Sync: A sideband signal to communicate 

power management status from the platform to the processor.

I

CMOS

RESET#

Platform Reset pin driven by the PCH.

I 

CMOS

RSVD

RSVD_TP

RSVD_NCTF

Reserved: All signals that are RSVD and RSVD_NCTF must be left 

unconnected on the board. However, Intel recommends that all 

RSVD_TP signals have via test points.

No Connect

Test Point

Non-Critical to 

Function

SM_DRAMRST#

DDR3 DRAM Reset: Reset signal from processor to DRAM devices. 

One common to all channels.

O

CMOS