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參數(shù)資料
| 型號(hào)： | MB90F457PMT |
| 廠商： | FUJITSU LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-bit Proprietary Microcontroller |
| 中文描述： | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48 |
| 封裝： | 7 X 7 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 28/78頁 |
| 文件大?。?/td> | 680K |
| 代理商： | MB90F457PMT |
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MB90455 Series
28
2.
Time-Base Timer
The time-base time is a 18-bit free-run counter (time-base timer counter) that counts up in synchronization with
the main clock (dividing main oscillation clock by 2).
Four choices of interval time are selectable, and generation of interrupt request is allowed for each interval time.
Provides operation clock signal to oscillation stabilizing wait timer and peripheral functions.
Interval timer function
When the counter of time-base timer reaches an interval time specified by interval time selection bit
(TBTC:TBC1, TBC0), an overflow (carrying-over) occurs (TBTC: TBOF=1) and interrupt request is generated.
If an interrupt by overflow is permitted (TBTC: TBIE=1), an interrupt is generated when overflow occurs (TBTC:
TBOF=1).
The following four interval time settings are selectable :
Interval time of time-base timer
HCLK: Oscillation clock
Values in parentheses “( )” are those under operation of 4-MHz oscillation clock.
Count clock
Interval time
2/HCLK (0.5
μ
s)
2
12
/HCLK (Approx. 1.0 ms)
2
14
/HCLK (Approx. 4.1 ms)
2
16
/HCLK (Approx. 16.4 ms)
2
19
/HCLK (Approx. 131.1 ms)
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MB90F457SPMCR-GE1 | 制造商:FUJITSU 功能描述: |
| MB90F457SPMCR-G-JNE1 | 制造商:FUJITSU 功能描述: |
| MB90F462APFM-GE1 | 制造商:FUJITSU 功能描述:IC 16BIT MCU SMD LQFP64 |
| MB90F462AP-G-SHE1 | 制造商:FUJITSU 功能描述:16-bit Proprietary Microcontroller |
| MB90F462APMC-G-SPE1 | 制造商:FUJITSU 功能描述:16-Bit MCU 制造商:FUJITSU 功能描述:16-bit Microcontroller |
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