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參數(shù)資料
| 型號： | ATA6285N-PNPW |
| 廠商： | ATMEL CORP |
| 元件分類： | 通信及網絡 |
| 英文描述： | SPECIALTY TELECOM CIRCUIT, QCC32 |
| 封裝： | 5 X 5MM, QFN-32 |
| 文件頁數(shù)： | 32/121頁 |
| 文件大?。?/td> | 9917K |
| 代理商： | ATA6285N-PNPW |
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18
4958B–AUTO–11/10
Atmel ATA6285/ATA6286 [Preliminary]
When using the SEI instruction to enable interrupts, the instruction following SEI will be exe-
cuted before any pending interrupts, as shown in this example.
3.5.7.1
Interrupt Response Time
The interrupt execution response for all the enabled Atmel AVR interrupts is four clock cycles
minimum. After four clock cycles the program vector address for the actual interrupt handling
routine is executed. During this four clock cycle periods, the Program Counter is pushed onto
the Stack. The vector is normally a jump to the interrupt routine, and this jump takes three clock
cycles. If an interrupt occurs during execution of a multi-cycle instruction, this instruction is com-
pleted before the interrupt is served. If an interrupt occurs when the MCU is in sleep mode, the
interrupt execution response time is increased by four clock cycles. This increase comes in addi-
tion to the start-up time from the selected sleep mode.
A return from an interrupt handling routine takes four clock cycles. During these four clock
cycles, the Program Counter (two bytes) is popped back from the Stack, the Stack Pointer is
incremented by two, and the I-bit in SREG is set.
Assembly Code Example
inr16, SREG; store SREG value
cli ; disable interrupts during timed sequence
sbiEECR, EEMWE; start EEPROM write
sbiEECR, EEWE
outSREG, r16; restore SREG value (I-bit)
C Code Example
char cSREG;
cSREG = SREG;/* store SREG value */
/* disable interrupts during timed sequence */
_CLI();
EECR |= (1<<EEMWE); /* start EEPROM write */
EECR |= (1<<EEWE);
SREG = cSREG; /* restore SREG value (I-bit) */
Assembly Code Example
sei; set Global Interrupt Enable
sleep; enter sleep, waiting for interrupt
; note: will enter sleep before any pending
; interrupt(s)
C Code Example
_SEI(); /* set Global Interrupt Enable */
_SLEEP(); /* enter sleep, waiting for interrupt */
/* note: will enter sleep before any pending interrupt(s) */
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| ATEP-161100-SMA-P-01 | INTERCONNECTION DEVICE |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ATA6285N-PNQW | 功能描述:射頻微控制器 - MCU IC LF, Cap. Sens. Interface RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:Si100x 數(shù)據總線寬度:8 bit 最大時鐘頻率:24 MHz 程序存儲器大小:64 KB 數(shù)據 RAM 大小:4 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LGA-42 安裝風格:SMD/SMT 封裝:Tube |
| ATA6285-PNPW | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:TPMS Control and Transmitter IC |
| ATA6285-PNQW | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:TPMS Control and Transmitter IC |
| ATA6286 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:TPMS Control and Transmitter IC |
| ATA6286C-PNPW | 制造商:Atmel Corporation 功能描述:IC CTLR/XMITTER 433MHZ 32QFN 制造商:Atmel Corporation 功能描述:Active RFID AVR-uC, 125kHz + 433MHz |
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