Bouffalo Lab BL702 - Clock Management; Function Description; Glb; Introduction

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GLB
3.1 Introduction
GLB (Global Register) is a chip general global setting module, which mainly includes functions such as clock man-
agement, reset management, bus management, memory management, and GPIO management.
3.2 Function description
3.2.1 Clock management
The clock management function is mainly used to set the clock of the processor, bus, and various peripherals. Through
this module, you can set the clock source and clock frequency division of the above-mentioned module. At the same
time, it can also realize the gating of the above-mentioned module clock. To achieve the purpose of low power
consumption of the system.
For detailed settings, please refer to the chapters on reset and clock.
3.2.2 Reset management
Provide individual reset function and chip reset function of each peripheral module. Chip reset includes:
• CPU reset: just reset the CPU module, the program will run again, and the peripherals will not be reset
• System reset: All peripherals and CPU will be reset, but related registers in the AON domain will not be reset
• Power-on reset: the entire system including the related registers of the AON domain will be reset
The application can choose to use the corresponding reset method as needed.
BL702/704/706 Reference Manual
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