sak-xc161cj-16f40f Infineon Technologies Corporation, sak-xc161cj-16f40f Datasheet - Page 41

• Manufacturer Part Number: sak-xc161cj-16f40f
• Description: 16-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

3.8
The Real Time Clock (RTC) module of the XC161 is directly clocked via a separate clock
driver either with the on-chip auxiliary oscillator frequency (
prescaled on-chip main oscillator frequency (
from the selected clock generation mode of the XC161.
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 8
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
39
CNT
INT0
f
RTC
Interrupt Sub Node
=
6 Bits
6 Bits
CNT-Register
f
REL-Register
OSCm
CNT
INT1
/32). It is therefore independent
6 Bits
6 Bits
f
Functional Description
RTC
CNT
INT2
=
f
OSCa
XC161CJ-16F
10 Bits
10 Bits
Derivatives
CNT
INT3
MCB05568
) or with the
V2.4, 2006-08
RTCINT