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參數(shù)資料
| 型號(hào)： | SC28L92A1BS,528 |
| 廠商： | NXP Semiconductors |
| 文件頁(yè)數(shù)： | 9/73頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC UART DUAL W/FIFO 44PQFP |
| 標(biāo)準(zhǔn)包裝： | 4,000 |
| 系列： | IMPACT |
| 特點(diǎn)： | 故障啟動(dòng)位檢測(cè) |
| 通道數(shù)： | 2，DUART |
| FIFO's： | 16 字節(jié) |
| 電源電壓： | 3.3V，5V |
| 帶自動(dòng)流量控制功能： | 是 |
| 帶故障啟動(dòng)位檢測(cè)功能： | 是 |
| 帶調(diào)制解調(diào)器控制功能： | 是 |
| 帶CMOS： | 是 |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 48-VFQFN 裸露焊盤(pán) |
| 供應(yīng)商設(shè)備封裝： | 48-HVQFN EP（6x6） |
| 包裝： | 帶卷 (TR) |
| 其它名稱(chēng)： | 935281063528 SC28L92A1BS-F SC28L92A1BS-F-ND |
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17
2552K–AVR–04/11
ATmega329/3290/649/6490
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.
6.8.1
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 four 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 interrupt
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 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
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) */
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC28L92A1BS-F | 功能描述:UART 接口集成電路 3V-5V 1CH UART INTEL/MOT INTRF RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| SC28L92A1BS-S | 功能描述:UART 接口集成電路 3V-5V 1CH UART INTEL/MOT INTRF RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| SC28P-1GREEN | 制造商:Thomas & Betts 功能描述:ID TAG GREEN |
| SC28P-1RED | 制造商:Thomas & Betts 功能描述:ID TAG RED |
| SC28P-1YELLOW | 制造商:Thomas & Betts 功能描述:ID TAG YELLOW |
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