PXS20RM Datasheet, PDF (215/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

Chapter 11
Clock Generation Module (MC_CGM)
Clock Generation Module (MC_CGM)
11.1 Introduction
11.1.1 Overview
The clock generation module (MC_CGM) generates reference clocks for all the SoC blocks. The
MC_CGM selects one of the system clock sources to supply the system clock. The MC_ME controls the
system clock selection (see Chapter 32, Mode Entry Module (MC_ME), for more details). A set of
MC_CGM registers controls the clock dividers which are used for divided system and peripheral clock
generation. The memory spaces of system and peripheral clock sources which have addressable memory
spaces are accessed through the MC_CGM memory space. The MC_CGM also selects and generates an
output clock.
Figure 11-1 depicts the MC_CGM block diagram.
Freescale Semiconductor
PXS20 Microcontroller Reference Manual, Rev. 1
11-1