Acer E3-1220 v3 KC.12201.3E3 用户手册

CFG[19:0]

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 these lanes.

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

— 1 = Normal operation
— 0 = Lane numbers reversed.

• CFG[3]: MSR Privacy Bit Feature

— 1 = Debug capability is determined by

IA32_Debug_Interface_MSR (C80h) bit[0] setting

— 0 = IA32_Debug_Interface_MSR (C80h) bit[0] default

setting overridden

• CFG[4]: Reserved configuration lane. A test point may be

placed on the board for this lane.

• CFG[6:5]: PCI Express* Bifurcation:

 1

— 00 = 1 x8, 2 x4 PCI Express*
— 01 = reserved
— 10 = 2 x8 PCI Express*
— 11 = 1 x16 PCI Express*

• CFG[19:7]: Reserved configuration lanes. A test point may

be placed on the board for these lands.

I/O

GTL

CFG_RCOMP

Configuration resistance compensation. Use a 49.9 Ω ±1%

resistor to ground.

—

FC_x

FC (Future Compatibility) signals are signals that are available for

compatibility with other processors. A test point may be placed

on the board for these lands.

PM_SYNC

Power Management Sync: A sideband signal to communicate

power management status from the platform to the processor.

I

CMOS

PWR_DEBUG#

Signal is for debug.

I

Asynchronous

CMOS

IST_TRIGGER

Signal is for IFDIM testing only.

I

CMOS

IVR_ERROR

Signal is for debug. If both THERMTRIP# and this signal are

simultaneously asserted, the processor has encountered an

unrecoverable power delivery fault and has engaged automatic

shutdown as a result.

O

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. Intel recommends that all

RSVD_TP signals have via test points.

No Connect

Test Point

Non-Critical to

Function

Intel

®

 Xeon

®

 Processor E3-1200 v3 Product Family

Datasheet – Volume 1 of 2

June 2013

80

Order No.: 328907-001