FMC+ Loopback Connectivity Card User Guide
www.whizzsystems.com
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version 1.0 March 15, 2017
Detail Description;
The Oscillator U2 is programmable (1-220 MHz & 3.3V supply) through I2C interface from Host
card. The FMC+ LOOPBACK Card provides three sets of loopback connections as shown in Table
2, 3, 4;
•
DP [0:9]_M2C_P/N to DP [0:9]_C2M_P/N --- trace lengths matched between 2.57” to
2.87 inches
•
LA [00:16] to LA [17:33] --- trace lengths matched between 1.86” to 2.01”
•
HA [00:21] to HB [00:21] --- trace lengths matched between 3.15” to 3.3”
FMC MGT LOOPBACK
DP [0:9]_M2C_P/N To DP [0:9]_C2M_P/N
Pin name
Pin
Number
Pin
name
Pin
Number
DP0_M2C_N C7 DP0_C2M_N
C3
DP0_M2C_P C6 DP0_C2M_P
C2
DP1_M2C_N A3 DP1_C2M_N
A23
DP1_M2C_P A2 DP1_C2M_P
A22
DP2_M2C_N A7 DP2_C2M_N
A27
DP2_M2C_P A6 DP2_C2M_P
A26
DP3_M2C_N A11 DP3_C2M_N
A31
DP3_M2C_P A10 DP3_C2M_P
A30
DP4_M2C_N A15 DP4_C2M_N
A35
DP4_M2C_P A14 DP4_C2M_P
A34
DP5_M2C_N A19 DP5_C2M_N
A39
DP5_M2C_P A18 DP5_C2M_P
A38
DP6_M2C_N B17 DP6_C2M_N
B37
DP6_M2C_P B16 DP6_C2M_P
B36
DP7_M2C_N B13 DP7_C2M_N
B33
DP7_M2C_P B12 DP7_C2M_P
B32
DP8_M2C_N B9 DP8_C2M_N
B29
DP8_M2C_P B8 DP8_C2M_P
B28
DP9_M2C_N B5 DP9_C2M_N
B25
DP9_M2C_P B4 DP9_C2M_P
B24
Table 2: FMC+ MGT Loopback
