- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄97909 > EM6604SO24A Microcontroller PDF資料下載
參數(shù)資料
| 型號： | EM6604SO24A |
| 英文描述： | Microcontroller |
| 中文描述： | 微控制器 |
| 文件頁數(shù)： | 36/39頁 |
| 文件大小： | 675K |
| 代理商： | EM6604SO24A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁當(dāng)前第36頁第37頁第38頁第39頁
EM6603
03/02 REV. G/439
Copyright
2002, EM Microelectronic-Marin SA
6
www.emmicroelectronic.com
3
Reset
To initialize the EM6603, a system RESET must be executed. There are four methods of doing this:
(1)
Initial RESET from the oscillation detection circuit.
(2)
External RESET from the RESET PIN.
(3)
External RESET by simultaneous high input to terminals PA0..PA3.
(Combinations defined by metal option)
(4)
Watchdog RESET (software option).
During any of these RESET’s the STB/RST output pin is high.
Figure 5.System reset generation
3.1 Oscillation detection circuit
At power on, the built-in voltage regulator starts to follow the supply voltage until Vdd becomes higher than Vreg.
Since it is Vreg which supplies the oscillator and this needs time to stabilise, Power-On-Reset with the oscillation
detection circuit therefore counts the first 32768 oscillator clocks after power-on and holds the system in RESET.
The system will consequently remain in RESET for at least one second after power up.
After power up the Analogue Watchdog circuit monitors the oscillator. If it stops for any reason other then SLEEP
mode, then a RESET is generated and the STB/RST pin is driven high.
3.2 Reset Pin
During active or STANDBY mode the RESET terminal has a debouncer to reject noise and therefore must be
active high for at least 2ms or 16ms (CLK = 32kHz) - software selectable by DebCK in CIRQD register. (see
Table 31)
At power on, or when cancelling SLEEP mode, the debouncer is not active and so RESET must satisfy the filter
time constant (typ. 1sec) such that the RESET must be active high for at least 2sec.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EM6604SO24B | Microcontroller |
| EM6604TP24B | Microcontroller |
| EM6605DL24A | Microcontroller |
| EM6605SO24A | Microcontroller |
| EM6605SO24B | Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EM6604SO24B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| EM6604TP24B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| EM6604WP11 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Ultra Low Power Multi I/O Microcontroller |
| EM6604WP27 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Ultra Low Power Multi I/O Microcontroller |
| EM6604WS11 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Ultra Low Power Multi I/O Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。