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6.7.1 SYNC/SYSREF/1-PPS Page
The SYNC/SYSREF/1-PPS page shows all the SYSREF block settings and allows for a continuous SYSREF or
1-PPS clock to be configured to be outputted from GPIO1 or GPIO2.
The SYSREF divider output signals can be replicated on either GPIO1 and GPIO2 to provide additional single
ended 3.3V CMOS clocks after startup if desired. To configure the SYSREF/1PPS output replication the GPIO
must be enabled as an output (GPIOx_OUTEN = 1) and one of the SYSREF output to GPIO replication sources
must be active. The SYSREF replication source comes from any one of the SYSREF dividers in use from
OUT0/1, OUT4/5, OUT6/7, OUT/9, OUT10/11 or OUT12/13 by register programming (OUT_x_y_SR_GPIO_EN
= 1 and GPIO_SYSREF_SEL to the appropriate OUT_x_y). The GPIOx replicated SYSREF output will be a
continuous frequency. Pulsed SYSREF mode is not supported for the GPIOx replica outputs.
Figure 6-21. SYNC/SYSREF/1-PPS Page
6.8 Using the Outputs Page
The Outputs page shows all the possible source frequencies to the output channels. To simplify settings fields
necessary to providing an output frequency, a source mux lists all possible sources for each output. Be sure to
enable or disable the desired outputs on the right-hand side of the screen.
There are many detailed output pages beneath the Outputs page that show the individual controls for each set of
outputs.
Appendix A - TICS Pro LMK5B33216 Software
44
LMK5B33216EVM User's Guide
SNAU263A – FEBRUARY 2022 – REVISED JULY 2022
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