TC1130 Datasheet, PDF (67/113 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1130
Power Management System
The TC1130 power management system allows software to configure the various
processing units so that they automatically adjust to draw the minimum necessary power
for the application.
There are three power management modes:
• Run Mode
• Idle Mode
• Deep Sleep Mode
Table 5 describes these features of the power management modes.
Table 5
Power Management Mode Summary
Mode
Run
Idle
Deep Sleep
Description
The system is fully operational. All clocks and peripherals are enabled,
as determined by software.
The CPU clock is disabled, waiting for a condition to return it to Run
Mode. Idle Mode can be entered by software when the processor has no
active tasks to perform. All peripherals remain powered and clocked.
Processor memory is accessible to peripherals. A reset, Watchdog Timer
event, a falling edge on the NMI pin, or any enabled interrupt event will
return the system to Run Mode.
The system clock is shut off; only an external signal will restart the
system. Entering this state requires an orderly shut-down controlled by
the Power Management State Machine (PMSM).
Besides these explicit software-controlled power-saving modes, TC1130 supports
automatic power-saving in that operating units, which are currently not required or idle,
are shut off automatically until their operation is required again.
Data Sheet
63
V0.3, 2003-09