參數(shù)資料
型號: SAF-XC167CI-16F20F
廠商: INFINEON TECHNOLOGIES AG
英文描述: 16-Bit Single-Chip Microcontroller with C166SV2 Core
中文描述: 16位單片機與C166SV2核心
文件頁數(shù): 44/89頁
文件大?。?/td> 803K
代理商: SAF-XC167CI-16F20F
XC167-16
Derivatives
Functional Description
Data Sheet
42
V1.2, 2006-03
3.9
Real Time Clock
The Real Time Clock (RTC) module of the XC167 is directly clocked via a separate clock
driver either with the on-chip auxiliary oscillator frequency (
f
RTC
=
f
OSCa
) or with the
prescaled on-chip main oscillator frequency (
f
RTC
=
f
OSCm
/32). It is therefore independent
from the selected clock generation mode of the XC167.
The RTC basically consists of a chain of divider blocks:
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
All timers count up. Each timer can generate an interrupt request. All requests are
combined to a common node request.
Figure 9
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.
CNT-Register
REL-Register
10 Bits
6 Bits
6 Bits
10 Bits
T14
MCB05568
T14-Register
Interrupt Sub Node
RTCINT
MUX
:
PRE
RUN
CNT
INT3
CNT
INT2
CNT
INT1
CNT
INT0
f
CNT
f
RTC
T14REL
10 Bits
6 Bits
6 Bits
10 Bits
相關(guān)PDF資料
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