sab-c161ji-lf Infineon Technologies Corporation, sab-c161ji-lf Datasheet - Page 33

• Manufacturer Part Number: sab-c161ji-lf
• Description: 16-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

Real Time Clock
The Real Time Clock (RTC) module of the C161CS/JC/JI 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 via a
separate clock driver with the on-chip main oscillator frequency divided by 32
(
therefore independent from the selected clock generation mode of the C161CS/JC/JI.
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
Figure 8
Note: The registers associated with the RTC are not affected by a reset in order to
Data Sheet
f
RTC
=
maintain the correct system time even when intermediate resets are executed.
f
OSCm
RTC Block Diagram
/ 32) or with the on-chip auxiliary oscillator frequency (
Reload
T14REL
RTCH
T14
29
RTCL
8:1
C161CS/JC/JI-32R
f
RTC
Interrupt
Request
MCD04432
C161CS/JC/JI-L
f
RTC
=
V3.0, 2001-01
f
OSCa
). It is