REL1.1
Page 71 of 89
iWave Systems Technologies Pvt. Ltd.
Zynq-Ult MPSoC SOM Development Platform Hardware User Guide
2.6
Additional Features
2.6.1
Clock Synthesizer/Generator
The Zynq Ult MPSoC Carrier board supports one 10-output Clock Synthesizer
“SI5341B
-D-
GM”
for on board
clock distribution. This Clock Generator outputs are connected to PL-GTH & PS-GTR Transceiver Banks Reference Clock
on Board to Board Connectors through 0.01uF AC coupling capacitors. An external 48MHz crystal is connected to this
Clock Synthesizer
for reference. This Clock Synthesizer
supports from 100 Hz to 1028 Mhz clock output and
configurable through PS I2C0.
Table 14: Clock Synthesizer Output Clocks
Pin
No
Pin Name
Signal Name
Programmed
Frequency
Connected To
23
OUT0b
PS_MGTREFCLK3N_505
125MHz
B2B-2 220
th
pin.
24
OUT0
PS_MGTREFCLK3P_505
B2B-2 218
th
pin.
30
OUT2b
PS_MGTREFCLK1N_505
27MHz
B21-2 169
th
pin.
31
OUT2
PS_MGTREFCLK1P_505
B2B-1 171
th
pin.
34
OUT3b
PS_MGTREFCLK2N_505
52MHz
B2B-2 232
th
pin.
35
OUT3
PS_MGTREFCLK2P_505
B2B-2 230
th
pin.
37
OUT4b
PCIe_REFCLKP
100MHz
PCIe x4 connector A14
th
pin.
38
OUT4
PCIe_REFCLKP
PCIe x4 connector A13
th
pin.
41
OUT5b
PS_MGTREFCLK0N_505
100MHz
B2B-1 75
th
pin.
42
OUT5
PS_MGTREFCLK0P_505
B2B-1 77
th
pin.
44
OUT6b
GTREFCLK1N_223
125MHz
B2B-1 66
th
pin.
45
OUT6
GTREFCLK1P_223
B2B-1 64
th
pin.
50
OUT7b
GTREFCLK1N_224
125MHz
B2B-1 160
th
pin.
51
OUT7
GTREFCLK1P_224
B2B-1 158
th
pin.
53
OUT8b
GTREFCLK1N_225
156.25MHz
B2B-1 220
th
pin.
54
OUT8
GTREFCLK1P_225
B2B-1 218
th
pin.
58
OUT9b
GTREFCLK1N_226
148.5MHz
B2B-2 225
th
pin.
59
OUT9
GTREFCLK1P_226
B2B-2 223
th
pin.
Note: In Zynq Ult MPSoC Development board, PL GTH Primary clocks are connected from the dedicated clocks
on FMC HPC Connectors.