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參數(shù)資料
| 型號： | MB90455SPMT |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP48 |
| 封裝： | 0.50 MM PITCH, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 32/78頁 |
| 文件大?。?/td> | 680K |
| 代理商： | MB90455SPMT |
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MB90455 Series
38
6.
Clock Timer Outline
The clock timer is a 15-bit free-run counter that increments in synchronization with sub clock.
Interval time is selectable among 7 choices, and generation of interrupt request is allowed for each interval.
Provides operation clock to the subclock oscillation stabilizing wait timer and watchdog timer.
Always uses subclock as a count clock regardless of settings of clock selection register (CKSCR).
Interval timer function
In the clock timer, a bit corresponding to the interval time overflows (carry-over) when an interval time, which
is specified by interval time selection bit, is reached. Then overflow flag bit is set (WTC: WTOF=1).
If an interrupt by overflow is permitted (WTC: WTIE=1), an interrupt request is generated upon setting an
overflow flag bit.
Interval time of clock timer is selectable among the following seven choices :
Interval time of clock timer
SCLK: Sub clock frequency
Values in parentheses “( )” are calculation when operating with 8.192 kHz clock.
Sub clock cycle
Interval time
SCLK (122
s)
28/SCLK (31.25 ms)
29/SCLK (62.5 ms)
210/SCLK (125 ms)
211/SCLK (250 ms)
212/SCLK (500 ms)
213/SCLK (1.0 s)
214/SCLK (2.0 s)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB90457PMT | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP48 |
| MB90462PF | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP64 |
| MB90467P-SH | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP64 |
| MB90467PMC | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP64 |
| MB90F463APMC | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB90456 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Microcontroller |
| MB90456PMT | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90456S | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90456SPMT | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90457 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Microcontroller |
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