EP80579 Datasheet, PDF (1760/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
48.4.4.2 Gigabit Ethernet (GbE) Interface
Table 48-22. Gigabit Ethernet Interface Signals (Sheet 1 of 4)
Signal Name
IO Type
Direction
Ball
Count
GBE0_TxCLK
2.5VCMOS O
1
GBE0_TxCTL
2.5VCMOS O
1
GBE0_TxDATA[3:0] 2.5VCMOS O
4
GBE0_RxCLK
2.5VCMOS I
1
External
Pull-Up/
Down
[Ohms]
BSC/
XOR
Signal Description Normal/Alternate
Mode
BSC
BSC
BSC
BSC
Gigabit Ethernet Controller Port 0 Transmit
Clock: Transmit clock for GbE port 0. The
interpretation of this signal depends on the
interface mode that the controller is operating
in.
For RGMII this signal is the Transmit Clock, it is
disabled for RMII.
Gigabit Ethernet Controller Port 0 Transmit
Control: Transmit control for GbE port 0. The
interpretation of this signal depends on the
interface mode that the controller is operating
in.
For RGMII and RMII, this signal is the Transmit
Control and Transmit Enable, respectively.
Gigabit Ethernet Controller Port 0 Transmit
Control: Transmit control for GbE port 0. The
interpretation of these signals depends on the
interface mode that the controller is operating
in.
For RGMII,
GBE0_TxDATA[3:0] - Transmit Data
and for RMII,
GBE0_TxDATA[3:2] - Disabled
GBE0_TxDATA[1:0] - Transmit Data
Gigabit Ethernet Controller Port 0 Receive
Clock: Receive clock for GbE port 0. The
interpretation of this signal depends on the
interface mode that the controller is operating
in.
For RGMII this signal is the Receive Clock, it is
disabled for RMII. The GBEn_RxCLK’s can be
tied to GND as they are not required in RMII
mode – only in RGMII.
GBE0_RxCTL
2.5VCMOS I
1
GBE0_RxDATA[3:0] 2.5VCMOS I
4
BSC
BSC
Gigabit Ethernet Controller Port 0 Receive
Control: Receive control for GbE port 0. The
interpretation of this signal depends on the
interface mode that the controller is operating
in.
For RGMII and RMII, this signal is the Receive
Control and Carrier Sense/Receive Data Valid,
respectively.
Gigabit Ethernet Controller Port 0 Receive
Data: Receive data for GbE port 0. The
interpretation of these signals depends on the
interface mode that the controller is operating
in.
For RGMII,
GBE0_RxDATA[3:0] - Receive Data
and for RMII,
GBE0_RxDATA[3] - Receive Error
GBE0_RxDATA[2] - Disabled
GBE0_RxDATA[1:0] - Receive Data
Intel^® EP80579 Integrated Processor Product Line Datasheet
1760
August 2009
Order Number: 320066-003US