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參數資料
| 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： | 94/120頁 |
| 文件大?。?/td> | 854K |
| 代理商： | A42MX16-1BG100A |
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75
4958B–AUTO–11/10
Atmel ATA6285/ATA6286 [Preliminary]
In safety level 2, it is not possible to disable the Watchdog Timer, not even with the algorithm
described above, refer to Table 3-30 on page 74.
WDE is overridden by WDRF in MCUSR. This means the WDE is always set when the WDRF is
set. To clear WDE, WDRF must be cleared first. This feature ensures multiple resets during con-
ditions causing failure, and a save start-up after the failure.
The following code example shows one assembly and one C function for turning off the
Watch-dog Timer. The example includes the disabling of global interrupts so that no interrupt will
occur during the execution of these functions.
Note:
Assembly Code Example(1)
WDT_off:
; Turn off global interrupt
cli
; Reset Watchdog Timer
wdr
; Clear WDRF in MCUSR
in r16, MCUSR
andi r16, (0xff & (0<<WDRF))
out MCUSR, r16
; Write logical one to WDCE and WDE
; Keep old prescaler setting to prevent unintentional time-out
lds r16, WDTCR
ori r16, (1<<WDCE) | (1<<WDE)
sts WDTCR, r16
; Turn off WDT
ldi r16, (0<<WDE)
sts WDTCR, r16
; Turn on global interrupt
sei
ret
C Code Example(1)
void WDT_off(void)
{
__disable_interrupt();
__watchdog_reset();
/* Clear WDRF in MCUSR */
MCUSR &= ~(1<<WDRF);
/* Write logical one to WDCE and WDE */
/* Keep old prescaler setting to prevent unintentional time-out */
WDTCR |= (1<<WDCE) | (1<<WDE);
/* Turn off WDT */
WDTCR = 0x00;
__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 |
參數描述 |
|---|---|
| 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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