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參數(shù)資料
| 型號： | A42MX16-1BG100A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | LED驅動器 |
| 英文描述： | LED Driver IC; Output Current Max:200mA; Supply Voltage Max:7V; Package/Case:10-MLP; Output Current:200mA; Output Voltage:4.75V; Leaded Process Compatible:Yes; Operating Temp. Max:85 C; Operating Temp. Min:-40 C |
| 中文描述： | 40MX和42MX FPGA系列 |
| 文件頁數(shù)： | 95/120頁 |
| 文件大?。?/td> | 854K |
| 代理商： | A42MX16-1BG100A |
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76
4958B–AUTO–11/10
Atmel ATA6285/ATA6286 [Preliminary]
If the Watchdog is accidentally enabled, for example by a runaway pointer or brown-out condi-
tion, the device will be reset and the Watchdog Timer will stay enabled. If the code is not set up
to handle the Watchdog, this might lead to an eternal loop of time-out resets. To avoid this situa-
tion, the application software should always clear the Watchdog System Reset Flag (WDRF)
and the WDE control bit in the initialisation routine, even if the Watchdog is not in use.
The following code example shows one assembly and one C function for changing the time-out
value of the Watchdog Timer. The Watchdog Timer should be reset before any change of the
WDPS bits, since a change in the WDPS bits can result in a time-out when switching to a shorter
time-out period:
Note:
Assembly Code Example(1)
WDT_Prescaler_Change:
; Turn off global interrupt
cli
; Reset Watchdog Timer
wdr
; Start timed sequence
lds r16, WDTCR
ori r16, (1<<WDCE) | (1<<WDE)
sts WDTCR, r16
; -- Got four cycles to set the new values from here -
; Set new prescaler(time-out) value = 64K cycles (~0.5 s)
ldi r16, (1<<WDE) | (1<<WDPS2) | (1<<WDPS0)
sts WDTCR, r16
; -- Finished setting new values, used 2 cycles -
; Turn on global interrupt
sei
C Code Example(1)
void WDT_Prescaler_Change(void)
{
__disable_interrupt();
__watchdog_reset();
/* Start timed equence */
WDTCR |= (1<<WDCE) | (1<<WDE);
/* Set new prescaler(time-out) value = 64K cycles (~0.5 s) */
WDTCR = (1<<WDE) | (1<<WDPS2) | (1<<WDPS0);
__enable_interrupt();
}
相關PDF資料 |
PDF描述 |
|---|---|
| A42MX16-1BG100B | IC CHARGE PUMP FLASH LED 10-MLP |
| A42MX16-1BG100ES | Controller IC; Package/Case:16-MLP; Supply Voltage Max:14V; Leaded Process Compatible:Yes; Operating Temp. Max:85 C; Operating Temp. Min:-40 C; Output Voltage Max:6V; Packaging:Cut Tape; Peak Reflow Compatible (260 C):Yes RoHS Compliant: Yes |
| A42MX16-1BG100I | Controller IC; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No |
| A42MX16-1BG100M | Controller IC; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes |
| A42MX16-1CQ100 | Controller IC; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| A42MX16-1BG100B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:40MX and 42MX FPGA Families |
| A42MX16-1BG100ES | 制造商:ACTEL 制造商全稱:Actel Corporation 功能描述:40MX and 42MX FPGA Families |
| A42MX16-1BG100I | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:40MX and 42MX FPGA Families |
| A42MX16-1BG100M | 制造商:ACTEL 制造商全稱:Actel Corporation 功能描述:40MX and 42MX FPGA Families |
| A42MX16-1CQ100 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:40MX and 42MX FPGA Families |
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