Figure 18: Clock Architecture Overview
6.10.1 Clock Generator
The Mercury+ ST1 base board features a clock generator circuit addressable and configurable via I2C.
Type Manufacturer
Si5338B-B-GMR Silicon Labs
Table 32: Clock Generator Type
The clock generator has to be configured at power-up via I2C by the Mercury module or by another I2C
master. The device also provides the option of storing a user-defined clock configuration in its non-volatile
memory (NVM), which becomes the default clock configuration at power-up. The NVM is a one-time pro-
grammable (OTP) memory.
The Si5338B device can be reconfigured to desired functionality via the I2C interface. ClockBuilder
TM
Desk-
top Software is a tool provided by Silicon Labs, which allows the user to specify several settings, such as the
input clock pins and clock frequency, the output clock frequencies and phase shifts. These settings can be
exported and used in the software code to configure the clock generator.
For details on features and configuration, refer to the Si5338B datasheet.
Warning!
Writing the contents of the NVM OTP configuration memory voids the board warranty.
D-0000-456-001 42 / 48 Version 02, 23.07.2020
To Next Page
Loading...
Need help?
General