Intel C2518 FH8065501516710 Data Sheet

Intel

®

 Atom™ Processor C2000 Product Family for Microserver

Datasheet, Vol. 3 of 3

September 2014

630

Order Number: 330061-002US

Some of the signal pins are also used at power-up time as hardware-strapping pins. 

These pins are described in 

.

All signals described as Reserved must be connected to the platform board as indicated 

in the signal description section. Some Reserved signals must be terminated on the 

platform board and others must have No Connection (NC) to them. See 

Unless specified otherwise in the signal description, connecting a Reserved or NC signal 

to a board supply voltage, VSS, or to any other signal pin, including each other, results 

in component malfunction or incompatibility with future processors.

For reliable operation, ensure the following:

• Connect unused input-signal pins and bi-directional-signal pins to the appropriate 

high- or low-signal level.

• Unused active-high inputs are connected through a resistor to ground (VSS).
• Unused outputs are left unconnected; however, this interferes with some Test 

Access Port (TAP) functions, complicate debug probing, and prevent boundary-scan 

testing.

• A resistor must be used when tying bi-directional signals to power or ground.
• When tying any unused signal to power or ground, using a resistor instead of a 

direct connection, allows for system testability.

• Find additional termination guidance in the Edisonville/Rangeley Platform Design 

TCK

I

Pull-down

2K

TRST_B

I

Pull-up

2K

TMS

I

Pull-up

2K

TDI

I

Pull-up

2K

CX_PRDY_B

O, OD

Pull-up

2K

CX_PREQ_B

I

Pull-up

2K

()