Intel E5506 INXEONE5506 User Manual

22

 Intel

®

 Xeon

®

 Processor 5500 Series Datasheet, Volume 1

Some POC signals include specific timing requirements. Please refer to 

 for 

further details.

The voltage set by the VTT_VID signals is the typical reference voltage regulator (VR) 
output to be delivered to the processor V

TTA

 and V

TTD

 lands. It is expected that one 

regulator will supply all V

TTA

 and V

TTD

 lands. VTT_VID signals are CMOS push/pull 

outputs. Please refer to 

 for the DC specifications for these signals.

Individual processor VTT_VID values may be calibrated during manufacturing such that 
two processor units with the same core frequency may have different default VTT_VID 
settings.

The Intel Xeon Processor 5500 Series

 

utilizes three voltage identification signals to 

support automatic selection of power supply voltages. These correspond to 
VTT_VID[4:2]. The V

TT

 voltage level delivered to the processor lands must also 

encompass a 20 mV offset (See 

; V

TT_TYP

) above the voltage level 

corresponding to the state of the VTT_VID[7:0] signals (See 

; VR 11.0 

Voltage). 

 provide the resulting static and transient 

tolerances. Please note that the maximum and minimum electrical loadlines are defined 
by a 31.5 mV tolerance band above and below V

TT_TYP

 values.

Power source characteristics must be guaranteed to be stable whenever the supply to 
the voltage regulator is stable.

VR_Key

VID[7]

0b for VR11.1

Electronic safety key 

distinguishing VR11.1

Spare

VID[6]

0b (default)

Reserved for future use

CSC[2:0]

VID[5:3]

-000 
-001 
-010
-011 
-100 
-101 
-111 

Feature Disabled

ICC_MAX = 40A

ICC_MAX = 50A

1

ICC_MAX = 80A

ICC_MAX = 100A

ICC_MAX = 120A

ICC_MAX = 150A

2

1. This setting is defined for future use; no specific Intel Xeon Processor 5500 Series SKU is defined with ICC_MAX

= 50A

2. General rule: Set PWM IMON slope to: 900mV=IMAX, where IMAX =IccMAX with one exception: for Intel Xeon

Processor W5580 set IMON slope to 900mV=180A, but for all other SKUs they have to match, as shown above.

Consult your PWM data sheet for the IMON slope setting.

Current Sensor Configuration 

(CSC) programs the gain 

applied to the ISENSE A/D 

output. ISENSE data is then 

used to dynamically calculate 

current and power.

MSID[2:0]

VID[2:0]

-001 
-011
-100
-101
-110

38W TDP / 40A ICC_MAX
60W TDP / 80A ICC_MAX

80W TDP / 100A ICC_MAX
95W TDP / 120A ICC_MAX

130W TDP / 150A ICC_MAX

MSID[2:0] signals are provided 

to indicate the Market Segment 

for the processor and may be 

used for future processor 

compatibility or keying. See 

 for platform timing 

requirements of the MSID[2:0] 

signals.