SAK-C164CI-8RM Infineon Technologies AG, SAK-C164CI-8RM Datasheet - Page 28

• Manufacturer Part Number: SAK-C164CI-8RM
• Description: 16-Bit Single-Chip Microcontroller
• Manufacturer: Infineon Technologies AG

Real Time Clock
The Real Time Clock (RTC) module of the C164CI 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 (
therefore independent from the selected clock generation mode of the C164CI. 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 7
Note: The registers associated with the RTC are not affected by a reset in order to
Data Sheet
maintain the correct system time even when intermediate resets are executed.
RTC Block Diagram
Reload
T14REL
RTCH
T14
24
RTCL
8:1
f
RTC
f
RTC
Interrupt
Request
MCD04432
=
f
OSC
C164CL/SL
V2.0, 2001-05
C164CI/SI
/32) and is