Intel C2350 FH8065401488914 Data Sheet
Product codes
FH8065401488914
Volume 3—Signal Pin States and Termination—C2000 Product Family
Strap Signals
Intel
®
Atom™ Processor C2000 Product Family for Microserver
Datasheet, Vol. 3 of 3
September 2014
630
Order Number: 330061-002US
32.3
Strap Signals
Some of the signal pins are also used at power-up time as hardware-strapping pins.
These pins are described in
.
32.4
Reserved Signals and Signals Not Used by Platform Board
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
• 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
• 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
Guide (PDG).
§ §
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
Table 32-23. Integrated Termination Resistors (Sheet 2 of 2)
Signal
Direction
Internal Termination
Resistor Type
Nominal Value
()