Microcontrollers User manual

UM10237_2 © NXP B.V. 2008. All rights reserved.
User manual Rev. 02 — 19 December 2008 41 of 792
1. Summary of clocking and power control functions
This section describes the generation of the various clocks needed by the LPC2400 and
options of clock source selection, as well as power control and wakeup from reduced
power modes. Functions described in the following subsections include:
• Oscillators
• Clock Source Selection
• PLL
• Clock Dividers
• APB Divider
• Power Control
• Wakeup Timer
UM10237
Chapter 4: LPC24XX Clocking and power control
Rev. 02 — 19 December 2008 User manual