SAK-C167CS-LM

Manufacturer Part NumberSAK-C167CS-LM
Description16-Bit Single-Chip Microcontroller
ManufacturerInfineon Technologies AG
SAK-C167CS-LM datasheet
 
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Page 33/81:

Real Time Clock

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Real Time Clock

The Real Time Clock (RTC) module of the C167CS consists of a chain of 3 divider
blocks, a fixed 8:1 divider, the reloadable 16-bit timer T14, and the 32-bit RTC timer
(accessible via registers RTCH and RTCL). The RTC module is directly clocked with the
on-chip oscillator frequency divided by 32 via a separate clock driver (
and is therefore independent from the selected clock generation mode of the C167CS.
All timers count up.
The RTC module can be used for different purposes:
• System clock to determine the current time and date
• Cyclic time based interrupt
• 48-bit timer for long term measurements
T14REL
Reload
T14
RTCH
Figure 8
RTC Block Diagram
Note: The registers associated with the RTC are not affected by a reset in order to
maintain the correct system time even when intermediate resets are executed.
Data Sheet
f
RTC
8:1
RTCL
29
C167CS-4R
C167CS-L
f
f
=
/32)
RTC
OSC
Interrupt
Request
MCD04432
V2.2, 2001-08