NXP Semiconductors KL25 Series - Chapter 16 Reset Control Module (RCM); 16.2 Reset memory map and register descriptions

Chapter 16
Reset Control Module (RCM)
16.1 Introduction
This chapter describes the registers of the Reset Control Module (RCM). The RCM
implements many of the reset functions for the chip. See the chip's reset chapter for more
information.
16.2 Reset memory map and register descriptions
The Reset Control Module (RCM) registers provide reset status information and reset
filter control.
NOTE
The RCM registers can be written only in supervisor mode.
Write accesses in user mode are blocked and will result in a bus
error.
RCM memory map
Absolute
address
(hex)
Register name
Width
(in bits)
Access Reset value
Section/
page
4007_F000 System Reset Status Register 0 (RCM_SRS0) 8 R 82h 16.2.1/265
4007_F001 System Reset Status Register 1 (RCM_SRS1) 8 R 00h 16.2.2/267
4007_F004 Reset Pin Filter Control register (RCM_RPFC) 8 R/W 00h 16.2.3/268
4007_F005 Reset Pin Filter Width register (RCM_RPFW) 8 R/W 00h 16.2.4/269
16.2.1 System Reset Status Register 0 (RCM_SRS0)
This register includes read-only status flags to indicate the source of the most recent
reset. The reset state of these bits depends on what caused the MCU to reset.
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
Freescale Semiconductor, Inc. 265