Intel EP80579 Manual page 300

Schematics Checklist—Intel
Table 100. Schematic Checklist (Sheet 17 of 26)
Checklist Items
Controller Area Network (CAN) Interface
CN0TXD,
CN1TXD
CN0TXEN,
CN1TXEN
CN0RXD,
CN1RXD
Gigabit Ethernet (GbE) Interface
Note:
• GBE Port 0 supports Wake-On-LAN (WOL); hence GBE Port 0 Block resides in the Sustain Power Well within
EP80579. It is required that all GBE Port 0 (Transmit/Receive) interface signals on the platform be powered by GBE
Standby Voltage. GBE Port 1&2 should be powered by GBE core power.
GBEn_TxDATA[3:0]
®
Intel EP80579 Integrated Processor Product Line
Order Number: 320068-005US
®
EP80579 Integrated Processor Product Line
I/O Type
Recommendations
(Default)
Acceleration and I/O Complex (AIOC)
• Connect directly to the Driver
(D) inputs of CAN Transceivers
O
• One CAN Transceiver per
channel
• Connect to Standby/Slope
O Control (Rs) inputs of CAN
Transceivers
• Connect directly to the Receive
I
(R) outputs of CAN Transceivers
• Interconnect each Port Transmit
Data (GBEn_TxDATA[3:0]) to
the corresponding Port Transmit
Data of the RGMII PHY Device
• Pull up GBE Port 0 Transmit
Data signals to EP80579 2.5V
O
Standby Voltage (VCCSUS25)
using a 1.2KΩ ± 5% resistors.
• Pull up GBE Port 1&2 Transmit
Data signals to GBE 2.5V using a
1.2KΩ ± 5% resistors.
• Leave signals for any unused
Port as no connect.
Note:
• Can be left as NC when the port is not used in either mode.
• Connect CAN Low/High (CANL/
Note:
• Can be left as NC when the port is
• Driver is switched off and the
Note:
• Can be left as NC when the port is
Note:
• Must be pulled high through a 10
RGMII Mode
• Interconnect the lower two bits of
• Pull up GBE Port 0 Transmit Data
• Pull up GBE Port 1&2 Transmit Data
• Leave all unused Transmit Data
Comments
CANH) outputs to CAN Connector
not connected to an interfacing
device.
receiver is activated if a high logic is
applied to Rs and remains in sleep
mode until the circuit is activated by
a low logic level on Rs
not connected to an interfacing
device.
KΩ resistor when the interface is not
used or connected to an interfacing
device
RMII Mode
each Port Transmit Data
(GBEn_TxDATA[1:0]) to the
corresponding Port Transmit Data of
the RMII PHY Device.
signals to EP80579 3.3V Standby
Voltage (VCCGBEPSUS) using a
1.2KΩ ± 5% resistors.
signals to GBE 3.3V using a 1.2KΩ ±
5% resistors
signals as no connect.
May 2010
300