Product Data Sheet / Brochure

Broadcom 957414M4142C-DS107
5
BCM957414M4142C Data Sheet Dual-Port 25 Gb/s SFP28 Ethernet PCI Express 3.0 x8 OCP 2.0 Mezzanine Card
1.2 Host Interface Connector
The BCM957414M4142C OCP 2.0 mezzanine card interfaces with the system baseboard via a vertical-stacked card-to-card
connector, FCI/61083-124402LF. The PCIe bus, NC-SI bus, SMBus interface, various other sideband signals, and power
are assigned to this connector. The connector pinout complies with that of Connector A as described in the OCP Mezzanine
Card 2.0 Design Specification. Table 1 shows the signal pinout. Definitions of the signals at this connector are provided in
the OCP Mezzanine Card 2.0 Design Specification.
Table 1: Host Interface Connector Signal Pinout
Pin Signal
A1 MEZZ_PRSNTA1_N/
BASEBOARD_A_ID
A2 P5V_AUX
A3 P5V_AUX
A4 P5V_AUX
A5 GND
A6 GND
A7 P3V3_AUX
A8 GND
A9 GND
A10 P3V3
A11 P3V3
A12 P3V3
A13 P3V3
A14 NCSI_RCSDV
A15 NCSI_RCLK
A16 NCSI_TXEN
A17 PERST_N0
A18 MEZZ_SMCLK
A19 MEZZ_SMDATA
A20 GND
A21 GND
A22 NCSI_RXD0
A23 NCSI_RXD1
A24 GND
A25 GND
A26 CLK_100M_MEZZ1_DP
A27 CLK_100M_MEZZ1_DN
A28 GND
A29 GND
A30 MEZZ_RX_DP<0>
A31 MEZZ_RX_DN<0>
A32 GND
A33 GND
A34 MEZZ_RX_DP<1>
A35 MEZZ_RX_DN<1>
A36 GND
A37 GND
A38 MEZZ_RX_DP<2>
A39 MEZZ_RX_DN<2>
A40 GND
A41 GND
A42 MEZZ_RX_DP<3>
A43 MEZZ_RX_DN<3>
A44 GND
A45 GND
A46 MEZZ_RX_DP<4>
A47 MEZZ_RX_DN<4>
A48 GND
A49 GND
A50 MEZZ_RX_DP<5>
A51 MEZZ_RX_DN<5>
A52 GND
A53 GND
A54 MEZZ_RX_DP<6>
A55 MEZZ_RX_DN<6>
A56 GND
A57 GND
A58 MEZZ_RX_DP<7>
A59 MEZZ_RX_DN<7>
A60 GND
A61 P12V_AUX/P12V
A62 P12V_AUX/P12V
A63 P12V_AUX/P12V
A64 GND
A65 GND
A66 P3V3_AUX
A67 GND
A68 GND
A69 P3V3
Pin Signal
A70 P3V3
A71 P3V3
A72 P3V3
A73 GND
A74 LAN_3V3STB_ALERT_N
A75 SMB_LAN_3V3STB_CLK
A76 SMB_LAN_3V3STB_DAT
A77 PCIE_WAKE_N
A78 NCSI_RXER
A79 GND
A80 NCSI_TXD0
A81 NCSI_TXD1
A82 GND
A83 GND
A84 CLK_100M_MEZZ0_DP
A85 CLK_100M_MEZZ0_DN
A86 GND
A87 GND
A88 MEZZ_TX_DP_C<0>
A89 MEZZ_TX_DN_C<0>
A90 GND
A91 GND
A92 MEZZ_TX_DP_C<1>
A93 MEZZ_TX_DN_C<1>
A94 GND
A95 GND
A96 MEZZ_TX_DP_C<2>
A97 MEZZ_TX_DN_C<2>
A98 GND
A99 GND
A100 MEZZ_TX_DP_C<3>
A101 MEZZ_TX_DN_C<3>
A102 GND
A103 GND
A104 MEZZ_TX_DP_C<4>
Pin Signal
A105 MEZZ_TX_DN_C<4>
A106 GND
A107 GND
A108 MEZZ_TX_DP_C<5>
A109 MEZZ_TX_DN_C<5>
A110 GND
A111 GND
A112 MEZZ_TX_DP_C<6>
A113 MEZZ_TX_DN_C<6>
A114 GND
A115 GND
A116 MEZZ_TX_DP_C<7>
A117 MEZZ_TX_DN_C<7>
A118 GND
A119 GND
A120 MEZZ_PRSNTA2_N
Pin Signal