SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 37
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SAF-C164SM
Manufacturer Part Number
SAF-C164SM
Description
16-Bit CMOS Microcontroller
Manufacturer
Infineon Technologies
Datasheet
1.SAF-C164SM.pdf
(470 pages)
- Current page: 37 of 470
- Download datasheet (6Mb)
C164CM/C164SM
Derivatives
Architectural Overview
Flexible Clock Generation
The flexible clock generation system combines a variety of improved mechanisms (partly
user controllable) to provide the C164CM modules with clock signals. This is especially
important in power sensitive modes such as standby operation.
The power optimized oscillator generally reduces the amount of power which is
consumed in order to generate the clock signal within the C164CM.
The clock system efficiently controls the amount of power which is consumed in order
to distribute the clock signal within the C164CM.
Slowdown operation is achieved by dividing the oscillator clock by a programmable
factor (1 … 32) resulting in a low frequency device operation which significantly reduces
the overall power consumption.
Flexible Peripheral Management
Flexible peripheral management provides a mechanism to enable and disable each
peripheral module separately. In each situation (such as several system operating
modes, standby, etc.) only those peripherals may be kept running which are required for
the specified functionality. All others may be switched off. It also allows the operation
control of entire groups of peripherals including the power required for generating and
distributing their clock input signal. Other peripherals may remain active: for example, in
order to maintain communication channels. The registers of separately disabled
peripherals (not within a disabled group) can still be accessed.
Periodic Wakeup from Idle or Sleep Mode
Periodic wakeup from Idle mode or from Sleep mode combines the drastically reduced
power consumption in Idle/Sleep mode (in conjunction with the additional power
management features) with a high level of system availability. External signals and
events can be scanned (at a lower rate) by periodically activating the CPU and selected
peripherals which then return to powersave mode after a short time. This greatly reduces
the system’s average power consumption. Idle/Sleep mode can also be terminated by
external interrupt signals.
User’s Manual
2-20
V1.0, 2002-02
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