PAC25140 Users Guide Preview
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Rev. 1.0.0 28 February 2023 © 2023 Qorvo US, Inc.
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9.2
SYSTEM AND CLOCK CONTROL (SCC)
9.2.1 Overview
The System and Clock Control (SCC) module controls the clock and other system components
for the PAC55XX family of devices.
9.2.2 Features
▪
Clock Control System (CCS):
o
4 clock sources:
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4MHz internally generated 2% RC oscillator
▪
16MHz Ring Oscillator
▪
External clock input for up to 20MHz external clock sources
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Crystal driver for up to 10MHz crystals or ceramic resonators
2
o
300MHz PLL
o
5 system clocks for peripherals with programmable clock dividers
o
Clock gating for low-power mode support
▪
USART Mode Control
o
Selects between SSP or UART modes
▪
Interrupt Vector Table
o
32 interrupts
o
8 levels of priority
2
Note that only some devices contain the pins for the crystal input and output.
