Datasheet

Chapter 6
System control
6.1 System device identification (SDID)
This device is hard coded to the value 0x0040 in SDID registers.
6.2 Universally unique identification (UUID)
This device contains up to 64-bit UUID to identify each device in this family. The intent
of UUID is to enable distributed systems to uniquely identify information without
significant central coordination.
6.3 Reset and system initialization
Resetting the MCU provides a way to start processing from a set of known initial
conditions. During reset, most control and status registers are forced to initial values and
the program counter is loaded from the reset vector (0xFFFE:0xFFFF). On-chip
peripheral modules are disabled and I/O pins are initially configured as general-purpose
high-impedance inputs with disabled pullup devices. The CCR[I] bit is set to block
maskable interrupts so that the user program has a chance to initialize the stack pointer
(SP) and system control settings. SP is forced to 0x00FF at reset.
This device has the following sources for reset:
• Power-on reset (POR)
• Low-voltage detect (LVD)
• Watchdog (WDOG) timer
• Illegal opcode detect (ILOP)
•
MC9S08PA60 Reference Manual, Rev. 1, 9/2012
Freescale Semiconductor, Inc. 131