參數(shù)資料
型號(hào): MB90V460
廠商: Fujitsu Limited
英文描述: 16-bit Proprietary Microcontroller
中文描述: 16位微控制器專有
文件頁數(shù): 36/85頁
文件大?。?/td> 827K
代理商: MB90V460
MB90460 Series
36
3.
Timebase Timer
The timebase timer is an 18-bit free-running counter (timebase counter) that counts up in synchronization to the
internal count clock (main oscillator clock divided by 2) .
Features of timebase timer :
Interrupt generated when counter overflow
EI
2
OS supported
Interval timer function :
An interrupt generated at four different time intervals
Clock supply function :
Four different clocks can be selected as a watchdog timer’s count clock
Supply clock for oscillation stabilization
Block Diagram
TBIE TBOF TBR
TBC1 TBC0
×
2
1
×
2
2
×
2
3
×
2
8
×
2
9
×
2
10
×
2
11
×
2
12
×
2
13
×
2
14
×
2
15
×
2
16
×
2
18
×
2
17
OF
Counter
clear circuit
Interval
timer selector
OF
OF
OF
Timebase
timer counter
Counter clear
Timebase timer
interrupt signal #36
(24
H
)*
2
TBOF clear
TBOF set
To
watchdog
timer
To the oscillation
setting time selector
in the clock control
section
Divide-by
-two HCLK
Power-on reset
Stop mode start
CKSCR : MCS
=
1 to 0 *
1
Timebase timer interrpt
register (TBTC)
OF : Overflow
HCLK : Oscillation clock
*1 : Switching of the machine clock from the oscillation clock to the PLL clock
*2 : Interrupt number
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