Ab Connector Signal Descriptions; Network Controller Sideband Interface (Nc-Si) - ADLINK Technology AMD COM Express Express-VR7 User Manual

Express-VR7 User's Guide

4.3. AB Connector Signal Descriptions

4.3.1

Network Controller Sideband Interface (NC-SI)

Name Pin #
NCSI_CLK_IN B91
NCSI_RXD[1:0] B92
B93
NCSI_TXD[1:0] B95
B96
NCSI_CRS_DV B94
NCSI_TX_EN A84
NCSI_RX_ER B89
B98
NCSI_ARB_IN
B99
NCSI_ARB_OUT
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Description
Clock reference for receive, transmit and control
interface
Receive Data (from NC to BMC)
Transmit Data (from BMC to NC)
Carrier Sense/Receive Data valid to MC, indicating
that the transmitted data from NC to BMC is valid
Transmit enable
Receive error
Network Controller hardware arbitration input
Network Controller hardware arbitration output
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I/O PU / PD Comment
I 3.3VSB PD 10K Not supported
O PU 10K Not supported
3.3VSB 3.3VSB
I 3.3VSB PU 10K Not supported
3.3VSB
O PD 10K Not supported
3.3VSB
I 3.3VSB PD 10K Not supported
O Not supported
3.3VSB
I 3.3VSB Not supported
O Not supported
3.3VSB
PICMG COM.0 R3.1