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參數(shù)資料
| 型號(hào)： | AT90S8515-8AC |
| 廠商： | Atmel |
| 文件頁數(shù)： | 34/112頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 8K FLSH 8MHZ 44TQFP |
| 標(biāo)準(zhǔn)包裝： | 160 |
| 系列： | AVR® 90S |
| 核心處理器： | AVR |
| 芯體尺寸： | 8-位 |
| 速度： | 8MHz |
| 連通性： | SPI，UART/USART |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲(chǔ)器容量： | 8KB（4K x 16） |
| 程序存儲(chǔ)器類型： | 閃存 |
| EEPROM 大小： | 512 x 8 |
| RAM 容量： | 512 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 4 V ~ 6 V |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 44-TQFP |
| 包裝： | 托盤 |
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28
AT90S8515
0841G–09/01
Timer/Counter Interrupt Flag
Register – TIFR
Bit 7 – TOV1: Timer/Counter1 Overflow Flag
The TOV1 is set (one) when an overflow occurs in Timer/Counter1. TOV1 is cleared by
hardware when executing the corresponding interrupt handling vector. Alternatively,
TOV1 is cleared by writing a logical “1” to the flag. When the I-bit in SREG, TOIE1
(T i m er /Counter 1 O v erfl ow Inte rr upt Enabl e) and T OV 1 ar e s e t ( one ), the
Timer/Counter1 Overflow interrupt is executed. In PWM mode, this bit is set when
Timer/Counter1 changes counting direction at $0000.
Bit 6 – OCF1A: Output Compare Flag 1A
The OCF1A bit is set (one) when compare match occurs between the Timer/Counter1
and the data in OCR1A (Output Compare Register 1A). OCF1A is cleared by hardware
when executing the corresponding interrupt handling vector. Alternatively, OCF1A is
cleared by writing a logical “1” to the flag. When the I-bit in SREG, OCIE1A
(Timer/Counter1 Compare Match InterruptA Enable) and the OCF1A are set (one), the
Timer/Counter1 CompareA Match interrupt is executed.
Bit 5 – OCF1B: Output Compare Flag 1B
The OCF1B bit is set (one) when compare match occurs between the Timer/Counter1
and the data in OCR1B (Output Compare Register 1B). OCF1B is cleared by hardware
when executing the corresponding interrupt handling vector. Alternatively, OCF1B is
cleared by writing a logical “1” to the flag. When the I-bit in SREG, OCIE1B
(Timer/Counter1 Compare Match InterruptB Enable) and the OCF1B are set (one), the
Timer/Counter1 CompareB Match interrupt is executed.
Bit 4 – Res: Reserved Bit
This bit is a reserved bit in the AT90S8515 and always reads zero.
Bit 3 – ICF1: Input Capture Flag 1
The ICF1 bit is set (one) to flag an input capture event, indicating that the
Timer/Counter1 value has been transferred to the input capture register (ICR1). ICF1 is
cleared by hardware when executing the corresponding interrupt handling vector. Alter-
natively, ICF1 is cleared by writing a logical “1” to the flag. When the SREG I-bit, TICIE1
(Timer/Counter1 Input Capture Interrupt Enable) and ICF1 are set (one), the
Timer/Counter1 Capture interrupt is executed.
Bit 2 – Res: Reserved Bit
This bit is a reserved bit in the AT90S8515 and always reads zero.
Bit 1 – TOV: Timer/Counter0 Overflow Flag
The bit TOV0 is set (one) when an overflow occurs in Timer/Counter0. TOV0 is cleared
by hardware when executing the corresponding interrupt handling vector. Alternatively,
TOV0 is cleared by writing a logical “1” to the flag. When the SREG I-bit, TOIE0
(T i m er /Counter 0 O v erfl ow Inte rr upt Enabl e) and T OV 0 ar e s e t ( one ), the
Timer/Counter0 Overflow interrupt is executed.
Bit 0 – Res: Reserved Bit
This bit is a reserved bit in the AT90S8515 and always reads zero.
Bit
7
6
5
4
3
2
1
0
$38 ($58)
TOV1
OCF1A
OCIFB
–
ICF1
–
TOV0
–
TIFR
Read/Write
R/W
R
R/W
R
R/W
R
Initial Value
0
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參數(shù)描述 |
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| AT90S8515-8AI | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 8K bytes In-System Programmable Flash |
| AT90S8515-8JC | 功能描述:8位微控制器 -MCU 8K Flash 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 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 + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| AT90S8515-8JI | 功能描述:8位微控制器 -MCU 8K Flash 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 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 + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| AT90S8515-8PC | 功能描述:8位微控制器 -MCU 8K Flash 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 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 + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| AT90S8515-8PI | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 8K Bytes In-System Programmable Flash |
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