Intel C2350 FH8065401488914 Data Sheet
Product codes
FH8065401488914
Volume 3—Signal Names and Descriptions—C2000 Product Family
GbE, SMBus, and NC-SI Signals
Intel
®
Atom™ Processor C2000 Product Family for Microserver
Datasheet, Vol. 3 of 3
September 2014
594
Order Number: 330061-002US
GBE_SMBCLK/
NCSI_CLK_IN
I/O,
OD
CMOS_V3P3_
OD
1
20K, PU
EXT PU
V3P3A
GbE SMBus Clock. One clock
pulse is generated for each
data bit transferred. An
external pull-up resistor
required. If the GBE_SMBCLK
interface is not used, the
signals can be used as the
NCSI_CLK_IN signal.
As an input signal, the
As an input signal, the
NCSI_CLK_IN must be
connected to the 50-MHz
NC-SI REF_CLK generator on
the platform board.
This same signal pin can be
This same signal pin can be
programmed to provide the
50-MHz NC-SI REF_CLK for
the NC-SI devices on the
platform board including the
SoC. If so programmed, the
NCSI_CLK_IN pin also
functions as the
“NCSI_CLK_OUT” of the SoC.
Note:
If not used, have an
external pull-down
resistor. Also, this
clock is in addition to
and separate from
the XTAL clock.
GBE_SMBALRT_N/
NCSI_CRS_DV
I/O,
OD
CMOS_V3P3_
OD
1
20K, PU
EXT PU
V3P3A
GbE SMBus Alert. Acts as an
interrupt of a slave device on
SMBus. External pull-up
resistor required. If the
GBE_SMBALRT_N interface is
not used, the signals can be
used as NCSI_CRS_DV Carrier
Sense/Receive Data Valid
(CRS/DV).
GBE_SDP0_0/
GPIO_SUS17
I/O
CMOS_V3P3
1
20K, PU
V3P3A
GbE Port 0 SW Defined Pin 0:
The SDP pins are reserved
pins that are software
programmable write/read
input/output capability. These
default to inputs upon power-
up, but may have their
direction and output values
defined in the EEPROM. The
SDP bits may be mapped to
the General Purpose Interrupt
bits when configured as
inputs. The SDP0_0 pin can
be used as a watchdog output
indication. If the GBE_SDP0_0
interface is not used, the
signal can be used as GPIO
SUS Port 17.
Table 31-12. GbE, SMBus, and NC-SI Signals (Sheet 2 of 5)
Signal Name
I/O
Type
I/O Buffer
Type
Ball
Count
Internal
Resistor
PU/PD
External
Resistor
PU/PD
Power
Rail
Description