Техническая Спецификация для Intel C2338 FH8065501516761
Модели
FH8065501516761
Intel
®
Atom™ Processor C2000 Product Family for Microserver
September 2014
Datasheet, Vol. 3 of 3
Order Number: 330061-002US
643
Volume 3—Signal Electrical and Timing Characteristics—C2000 Product Family
2.5 and 1 Gigabit Ethernet (GbE) Interface
33.3
2.5 and 1 Gigabit Ethernet (GbE) Interface
For GbE reference clock input specifications, see
.
The SoC has up to four GbE ports depending on product SKU. Each port consists of a
Transmitter differential pair and a Receiver differential pair which are in the 1.0-Volt
SUS power well of the SoC.
• GBE_TXP[3:0], GBE_TXN[3:0] (Low Voltage Differential)
• GBE_RXP[3:0], GBE_RXN[3:0] (Low Voltage Differential)
• GBE_RXP[3:0], GBE_RXN[3:0] (Low Voltage Differential)
The electrical specifications conform to standards and depend on the mode of
operation:
• SGMII (MAC to PHY)
• 1000BASE-KX (1 GbE)
• 2500BASE-X (2.5 GbE)
• 1000BASE-KX (1 GbE)
• 2500BASE-X (2.5 GbE)
33.3.1
SGMII (MAC to PHY)
The SoC is designed to support 1000BASE-T when an external, SGMII-capable Physical-
Layer device (PHY) is used in the platform board design. The SoC interface with the
PHY conforms with the industry’s Serial Gigabit Media Independent Interface (SGMII)
Specification. The specification is a modified Physical Coding Sublayer (PCS) layer of
the Gigabit Media Independent Interface (GMII) of the IEEE Standard 802.3*-2008,
SECTION THREE, Clause 36, type 1000BASE-X. Refer to Clause 36 as well as Clause 37
of the IEEE 802.3 standard. The interface circuitry conforms to the IEEE Standard
802.3*-2008, SECTION FIVE, Clause 70 - Physical Medium Dependent Sublayer and
Baseband Medium, Type 1000BASE-KX. Refer to 70.7 1000BASE-KX electrical
characteristics of Clause 70.
33.3.2
1000BASE-KX (1 GbE)
The SoC is designed to operate with Ethernet interface circuitry that conforms to of the
IEEE Standard 802.3*-2008, Section 5, Clause 70 - Physical Medium Dependent
Sublayer and Baseband Medium, Type 1000BASE-KX. Refer to 70.7 1000BASE-KX
electrical characteristics of Clause 70.