xc2234l-20f80l Infineon Technologies Corporation, xc2234l-20f80l Datasheet - Page 48

• Manufacturer Part Number: xc2234l-20f80l
• Description: Lim 16/32-bit Single-chip Microcontroller With 32-bit Performance Xc2000 Family / Econo Line
• Manufacturer: Infineon Technologies Corporation

PRELIMINARY
3.10
The Real Time Clock (RTC) module of the XC223[04]L can be clocked with a clock signal
selected from internal sources or external sources (pins).
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 only affected by a power reset.
Data Sheet
f
Selectable 32:1 and 8:1 dividers (on - off)
The reloadable 16-bit timer T14
The 32-bit RTC timer block (accessible via registers RTCH and RTCL) consisting of:
– a reloadable 10-bit timer
– a reloadable 6-bit timer
– a reloadable 6-bit timer
– a reloadable 10-bit timer
f
RTC
RUN
CNT
M UX
Real Time Clock
PRE
T14-Register
RTC Block Diagram
T14REL
:
8 :
32
T14
REFCLK
M UX
10 Bits
10 Bits
44
CNT
INT0
Interrupt Sub Node
6 Bits
6 Bits
REL-Register
CNT-Register
XC2000 Family / Econo Line
CNT
INT1
6 Bits
6 Bits
Functional Description
CNT
INT2
XC2230L, XC2234L
10 Bits
10 Bits
M CB05568B
CNT
INT3
V1.0, 2010-12
RTCINT