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参数资料
| 型号： | TSC80C31-25MG/883 |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 25 MHz, MICROCONTROLLER, CDIP40 |
| 封装： | 0.600 INCH, CERAMIC, DIP-40 |
| 文件页数： | 8/28页 |
| 文件大小： | 6193K |
| 代理商： | TSC80C31-25MG/883 |
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16
2467X–AVR–06/11
ATmega128
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.
Interrupt Response
Time
The interrupt execution response for all the enabled AVR interrupts is four clock cycles mini-
mum. After four clock cycles, the program vector address for the actual interrupt handling routine
is executed. During this 4-clock cycle period, 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 completed
before the interrupt is served. If an interrupt occurs when the MCU is in Sleep mode, the inter-
rupt execution response time is increased by four clock cycles. This increase comes in addition
to the start-up time from the selected sleep mode.
A return from an interrupt handling routine takes four clock cycles. During these 4-clock cycles,
the Program Counter (two bytes) is popped back from the Stack, the Stack Pointer is incre-
mented by two, and the I-bit in SREG is set.
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
__enable_interrupt(); /* set global interrupt enable */
__sleep(); /* enter sleep, waiting for interrupt */
/* note: will enter sleep before any pending interrupt(s) */
相关PDF资料 |
PDF描述 |
|---|---|
| TSC80C31-20CHR | 8-BIT, 20 MHz, MICROCONTROLLER, CQCC44 |
| TSC80C31-25IBB | 8-BIT, 25 MHz, MICROCONTROLLER, PQCC44 |
| TSC80C31-L16IBD | 8-BIT, 16 MHz, MICROCONTROLLER, PQCC44 |
| TSC80C51CXXX-20CID | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQCC44 |
| TSC80C51CXXX-36CIR | 8-BIT, MROM, 36 MHz, MICROCONTROLLER, CQCC44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TSC80C31-25MGB/883 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 44 MHz Single-Chip 8 Bit Microcontroller |
| TSC80C31-25MGD/883 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 44 MHz Single-Chip 8 Bit Microcontroller |
| TSC80C31-25MGR/883 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 44 MHz Single-Chip 8 Bit Microcontroller |
| TSC80C31-25MH | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 44 MHz Single-Chip 8 Bit Microcontroller |
| TSC80C31-25MHB/883 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 44 MHz Single-Chip 8 Bit Microcontroller |
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