參數(shù)資料
型號(hào)： SAH-XC2387A-104F80L
廠商： INFINEON TECHNOLOGIES AG
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP144
封裝： 0.50 MM PITCH, GREEN, PLASTIC, LQFP-144
文件頁數(shù)： 108/141頁
文件大?。?/td> 1795K
代理商： SAH-XC2387A-104F80L
XC2385A, XC2387A
XC2000 Family / Base Line
Functional Description
Data Sheet
69
V2.1, 2011-07
3.11
Real Time Clock
The Real Time Clock (RTC) module of the XC238xA 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:
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 10-bit timer
All timers count up. Each timer can generate an interrupt request. All requests are
combined to a common node request.
Figure 10
RTC Block Diagram
Note: The registers associated with the RTC are only affected by a power reset.
CNT-Register
REL-Register
10 Bits
6 Bits
10 Bits
T14
M CB05568B
T14-Register
Interrupt Sub Node
RTCINT
MUX
32
PRE
RUN
CNT
INT3
CNT
INT2
CNT
INT1
CNT
INT0
f
CNT
f
RTC
T14REL
10 Bits
6 Bits
10 Bits
:
MUX
8
:
REFCLK
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