Introduction
Table 2. MPC5642A series block summary (continued)
Block
Function
System Integration Unit (SIU)
Static random-access memory (SRAM)
System timers
System watchdog timer (SWT)
Temperature sensor
Controls MCU reset configuration, pad configuration, external
interrupt, general purpose I/O (GPIO), internal peripheral multiplexing,
and the system reset operation.
Provides storage for program code, constants, and variables
Includes periodic interrupt timer with real-time interrupt; output
compare timer and system watchdog timer
Provides protection from runaway code
Provides the temperature of the device as an analog value
MPC5642A Microcontroller Data Sheet, Rev. 3.1
8
Freescale Semiconductor