参数资料
型号: SAB-C167CS-LMCA
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 16-BIT, 25 MHz, MICROCONTROLLER, PQFP144
封装: PLASTIC, MQFP-144
文件页数: 27/84页
文件大小: 1082K
代理商: SAB-C167CS-LMCA
C167CS-4R
C167CS-L
Data Sheet
29
V2.2, 2001-08
Real Time Clock
The Real Time Clock (RTC) module of the C167CS 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 (
fRTC = fOSC/32)
and is therefore independent from the selected clock generation mode of the C167CS.
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 8
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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SAB-C167CS-4R33M 16-BIT, MROM, 33 MHz, MICROCONTROLLER, PQFP144
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