NXP Semiconductors KL25 Series - Chapter 12 System integration module (SIM); 12.1.1 Features

Chapter 12
System integration module (SIM)
12.1 Introduction
The system integration module (SIM) provides system control and chip configuration
registers.
12.1.1 Features
• System clocking configuration
• System clock divide values
• Architectural clock gating control
• ERCLK32K clock selection
• USB clock selection
• UART0 and TPM clock selection
• Flash and System RAM size configuration
• USB regulator configuration
• TPM external clock and input capture selection
• UART receive/transmit source selection/configuration
12.2 Memory map and register definition
The SIM module contains many bitfields for selecting the clock source and dividers for
various module clocks.
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
Freescale Semiconductor, Inc. 191