Intel CM8062101038606 manual Power-On Configuration POC Options, Signals with On-Die Termination

Electrical Specifications

Table 7-6. Signals with On-Die Termination

Signal Name	Pull Up /Pull	Rail	Value	Units	Notes
	Down
DDR{0/1}_PAR_ERR_N	Pull Up	VCCD_01	65	Ω
DDR{2/3}_PAR_ERR_N	Pull Up	VCCD_23	65	Ω
BMCINIT	Pull Down	VSS	2K	Ω	1
FRMAGENT	Pull Down	VSS	2K	Ω	1
TXT_AGENT	Pull Down	VSS	2K	Ω	1
SAFE_MODE_BOOT	Pull Down	VSS	2K	Ω	1
SOCKET_ID[1:0]	Pull Down	VSS	2K	Ω	1
BIST_ENABLE	Pull Up	VTT	2K	Ω	1
TXT_PLTEN	Pull Up	VTT	2K	Ω	1
EAR_N	Pull Up	VTT	2K	Ω	2

Notes:

1.Please refer to the applicable platform design guide to change the default states of these signals.

2.Refer to Table 7-20for details on the RON (Buffer on Resistance) value for this signal.

7.3Power-On Configuration (POC) Options

Several configuration options can be configured by hardware. The processor samples its hardware configuration at reset, on the active-to-inactive transition of RESET_N, or upon assertion of PWRGOOD (inactive-to-active transition). For specifics on these options, please refer to Table 7-7.

The sampled information configures the processor for subsequent operation. These configuration options cannot be changed except by another reset transition of the latching signal (RESET_N or PWRGOOD).

Table 7-7. Power-On Configuration Option Lands

Configuration Option	Land Name	Notes
Output tri state	PROCHOT_N	1
Execute BIST (Built-In Self Test)	BIST_ENABLE	2
Enable Service Processor Boot Mode	BMCINIT	3
Enable Intel TXT Platform	TXT_PLTEN	3
Power-up Sequence Halt for ITP configuration	EAR_N	3
Enable Bootable Firmware Agent	FRMAGENT	3
Enable Intel TXT Agent	TXT_AGENT	3
Enable Safe Mode Boot	SAFE_MODE_BOOT	3
Configure Socket ID	SOCKET_ID[1:0]	3

Notes:

1.Output tri-state option enables Fault Resilient Booting (FRB), for FRB details see Section 7.4. The signal used to latch PROCHOT_N for enabling FRB mode is RESET_N.

2.BIST_ENABLE is sampled at RESET_N de-assertion and CPU_ONLY_RESET de-assertion (on the falling edge).

3.This signal is sampled after PWRGOOD assertion.

164	Intel® Xeon® Processor E5-1600/E5-2600/E5-4600 Product Families
	Datasheet Volume One