Kontron SMARC Evaluation Carrier - Manual (Page 57)

User’s Guide
57 www.kontron.com
The AFB Mezzanine card signal pin-out is given in the following table. The 40 signal pins are arranged by the connector
design into pairs for high speed differential pair use. This is suggested in the table by the blank lines between pairs.
Not shown are the GND connections. The Samtec connector used has 4 large dedicated GND / shield pins.
Pin Number Description Pin Number Description
1 AFB_DIFF4- 2 NC
3 AFB_DIFF4+ 4 NC
5 NC 6 NC
7 NC 8 AFB7_PTIO
9 AFB_DIFF3- 10 NC
11 AFB_DIFF3+ 12 AFB6_PTIO
13 AFB_DIFF1- 14 AFB5_IN
15 AFB_DIFF1+ 16 AFB4_IN
17 AFB_DIFF2- 18 AFB3_IN
19 AFB_DIFF2+ 20 AFB2_OUT
21 AFB_DIFF0- 22 NC
23 AFB_DIFF0+ 24 AFB9_PTIO
25 AFB8_PTIO 26 AFB1_OUT
27 NC 28 AFB0_OUT
29 NC 30 V_IO
31 NC 32 V_IO
33 I2C_GP_CK 34 MLB_INT
35 I2C_GP_DAT 36 NC
37 3.3V 38 3.3V
39 3.3V 40 12V
Caution! Pins marked NC are not connected (to anything – and are not connected to each other).