SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 398

• Manufacturer Part Number: SAF-C164SM
• Description: 16-Bit CMOS Microcontroller
• Manufacturer: Infineon Technologies

Figure 21-1 Power Reduction Possibilities
Intermittent operation (alternating phases of high performance and power saving) is
supported by the cyclic interrupt generation mode of the on-chip RTC (Real Time Clock).
These three power reduction possibilities described above can be applied independently
from each other and thus provide a maximum flexibility for each application.
For the basic power reduction modes (Idle, Power Down) there are dedicated
instructions, while special registers control Sleep mode (SYSCON1), clock generation
(SYSCON2), and peripheral management (SYSCON3).
Three different general power reduction modes with different levels of power reduction
have been implemented in the C164CM. They may be entered under software control:
In Idle Mode, the CPU is stopped while the (enabled) peripherals continue their
operation. Idle mode can be terminated by any reset or interrupt request.
In Sleep Mode, both the CPU and the peripherals are stopped. The real-time clock and
its selected oscillator may optionally be kept running. Sleep mode can be terminated by
any reset or interrupt request (mainly hardware requests as stopped peripherals cannot
generate interrupt requests).
User’s Manual
f
CPU
Active
Idle
Power
21-2
Power Management
C164CM/C164SM
No. of act.
Peripherals
Derivatives
V1.0, 2002-02
MCA04476