Intel
®
EP80579 Integrated Processor with Intel
®
QuickAssist Technology—Technical Reference
Development Kit User’s Guide October 2008
42 Order Number: 320067-002US
4.8.5 CAN Header Pinout
Both Intel
®
EP80579 Integrated Processor Controller Area Network (CAN) interface
pins connect to two individual CAN transceivers. After conditioning by the transceiver,
the CAN signals will go to two separate 10-pin headers. For the CAN connector pinout,
see Table 21.
4.8.6 IEEE 1588-2008 Hardware-Assist Header Pinout
IEEE 1588-2008 Hardware-assist is used to achieve ethernet and CAN time
synchronization. On the Intel
®
EP80579 Development Board, the IEEE 1588-2008
Hardware-assist control I/O signals are connected to a 2x4 header. Table 22 provides
the IEEE 1588-2008 Hardware-assist header pinout.
117 3.3V 118 3.3V
119 MEZZ_SMBDAT 120 MEZZ_SMBCLK
1. n = 0 for mezzanine 1. For mezzanines 0 and 2, these pins are not connected.
2. Only available for mezzanine 1. These pins are not connected for mezzanines 0 and 2.
Table 20. Expansion Mezzanine Connector (Sheet 3 of 3)
Pin Name Pin Name
Table 21. CAN Header Pinout
Pin Signal Name Pin Signal Name
1NC 2CAN GND
3CAN Low 4CAN High
5CAN GND 6NC
4NC 8NC
5NC 10Key (no pin)
Table 22. IEEE 1588-2008 Hardware-Assist Signal Header Pinout
Pin Signal Pin# Signal
1 1588_TESTMODE_DATA 2 1588_SPS
3 ASMSSIG 4 AMMSSIG
5 1588_RX_SNAP 6 1588_TX_SNAP
7GND 8 GND
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