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參數(shù)資料
| 型號(hào)： | MB90497GPFM |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | PLASTIC, LQFP-64 |
| 文件頁數(shù)： | 38/90頁 |
| 文件大?。?/td> | 849K |
| 代理商： | MB90497GPFM |
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MB90495G Series
43
6.
Clock Timer
The clock timer is a 15-bit free-run counter that counts up in synchronization with the subclock.
Seven different intervals can be selected, and interrupt requests generated for each interval time.
Supplies a timer for subclock oscillation stabilization standby, and an operational clock for the watchdog timer.
The subclock is always the count clock, regardless of the clock selection register (CKSCR) setting.
Interval timer feature
When the interval time set by the interval time selection bits (WTC : WTC2 to WTC0) is reached, the clock
timer generates an overflow in the bits corresponding to the interval time of the clock timer counter, and sets
the overflow flag bit (WTC : WTOF
= 1) .
Interrupts arising from overflows are enabled (WTC : WTIE
= 1) , an interrupt request is generated when the
overflow flag bit is set (WTC : WTOF
= 1) .
Select from one of the following 7 clock timer intervals :
Clock Timer Interval Times
SCLK : Subclock frequency
Figures in parentheses ( ) are a sample calculation with the subclock running at 8.192 kHz.
Subclock Frequency
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 |
|---|---|
| MB90F498GPMC | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP64 |
| MB90497GPMC | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP64 |
| MB90F574/APFF | 16-BIT, FLASH, MICROCONTROLLER, PQFP120 |
| MB90F997MBSPMC | 16-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP48 |
| MB90F997JBSPMC | 16-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP48 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB90497GPMC | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90520A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90520B | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90522 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90522A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
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