SAK-C164CM-4EF Infineon Technologies AG, SAK-C164CM-4EF Datasheet - Page 28

• Manufacturer Part Number: SAK-C164CM-4EF
• Description: 16-Bit Single-Chip Microcontrol ler
• Manufacturer: Infineon Technologies AG

Real Time Clock
The Real Time Clock (RTC) module of the C164CM 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 C164CM.
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
Interrupt
Request
MCD04432
f
RTC
V1.0, 2001-05
=
C164CM
C164SM
f
OSC
/32)