參數(shù)資料
型號: C164SI
廠商: INFINEON TECHNOLOGIES AG
英文描述: 16-Bit Single-Chip Microcontroller
中文描述: 16位單片機
文件頁數(shù): 28/79頁
文件大?。?/td> 1314K
代理商: C164SI
C164CI/SI
C164CL/SL
Data Sheet
24
V2.0, 2001-05
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 (
f
RTC
=
f
OSC
/32) and is
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
RTC Block Diagram
Note: The registers associated with the RTC are not affected by a reset in order to
maintain the correct system time even when intermediate resets are executed.
MCD04432
T14REL
T14
8:1
RTC
f
RTCL
RTCH
Interrupt
Request
Reload
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