SAF-XC164CS-16F40FBB Infineon Technologies, SAF-XC164CS-16F40FBB Datasheet - Page 39

• Manufacturer Part Number: SAF-XC164CS-16F40FBB
• Manufacturer: Infineon Technologies

3.9
The Real Time Clock (RTC) module of the XC164CS is directly clocked via a separate
clock driver with the prescaled on-chip main oscillator frequency (
therefore independent from the selected clock generation mode of the XC164CS.
The RTC basically consists of a chain of divider blocks:
•
•
•
All timers count up. Each timer can generate an interrupt request. All requests are
combined to a common node request.
Figure 9
Note: The registers associated with the RTC are not affected by a reset in order to
Data Sheet
f
f
a selectable 8:1 divider (on - off)
the reloadable 16-bit timer T14
the 32-bit RTC timer block (accessible via registers RTCH and RTCL), made of:
– a reloadable 10-bit timer
– a reloadable 6-bit timer
– a reloadable 6-bit timer
– a reloadable 10-bit timer
RTC
CNT
maintain the correct system time even when intermediate resets are executed.
RUN
Real Time Clock
T14-Register
RTC Block Diagram
T14REL
:
8
T14
PRE
MUX
10 Bits
10 Bits
37
CNT
INT0
Interrupt Sub Node
6 Bits
6 Bits
CNT-Register
REL-Register
CNT
INT1
6 Bits
6 Bits
Functional Description
CNT
INT2
f
RTC
=
10 Bits
10 Bits
f
Derivatives
OSCm
CNT
INT3
MCB05568
V2.3, 2006-08
RTCINT
XC164CS
/32). It is