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参数资料
| 型号： | AT90S1200 |
| 厂商： | Atmel Corp. |
| 元件分类： | 8位微控制器 |
| 英文描述： | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| 中文描述： | 位AVR微控制器具有8K字节的系统内可编程闪存 |
| 文件页数： | 3/9页 |
| 文件大小： | 128K |
| 代理商： | AT90S1200 |
AVR410
3
Timer/Counter 0 Overflow Interrupt
Handler
The function of the timer interrupt is to generate a clock
base for the timing required. The routine increments the
“
timerL
”
register every 64 μs, and the
“
timerH
”
every 16,384
ms.
Example Program
The example program initializes the ports, sets up the timer
and enables interrupts. Then, the program enters an eter-
nal loop, calling the detect routine. If the system address is
correct, the command is output on port B.
;***************************************************************************
;* A P P L I C A T I O N N O T E F O R T H E A V R F A M I L Y
;*
;* Number
: AVR410
;* File Name :"rc5.asm"
;* Title :RC5 IR Remote Control Decoder
;* Date :97.08.15
;* Version :1.0
;* Support telephone :+47 72 88 43 88 (ATMEL Norway)
;* Support fax :+47 72 88 43 99 (ATMEL Norway)
;* Target MCU :AT90S1200
;*
;* DESCRIPTION
;* This Application note describes how to decode the frequently used
;* RC5 IR remote control protocol.
;*
;* The timing is adapted for 4 MHz crystal
;*
;***************************************************************************
.include "1200def.inc"
.device AT90S1200
Table 3.
“
TIM0_OVF
”
Interrupt Handler Performance
Figures
Parameter
Value
Code Size
7 words
Execution Cycles
6 + reti
Register Usage
Low Registers Used: 2
High Registers Used: 2
Global Registers: 0
Pointers Used: None
Table 4.
“
TIM0_OVF
”
Register Usage
Register
Internal
Output
R0
“
S
”
- Temporary Storage of Sreg
R1
“
inttemp
”
- Used by TIM0_OVF
R17
“
timerL
”
- Incremented every 64 μs
R18
“
timerH
”
- Incremented every 16,384 ms
Table 5.
Overall Performance Figures
Parameter
Value
Code Size
79 words -
“
detect
”
and
“
TIM0_OVF
96 words - Complete Application Note
Register Usage
Low Registers: 4
High Registers: 6
Pointers: None
Interrupt Usage
Timer/Counter 0 Interrupt
Peripheral Usage
Timer/Counter
Port D, pin 2
Port B (example program only)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT90S1200/A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:AT90S1200/A Rev. F Errata [Updated 9/01. 2 Pages] |
| AT90S1200_02 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 1K Byte of In-System Programmable Flash |
| AT90S1200-12PC | 功能描述:8位微控制器 -MCU 1K FLASH 5V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| AT90S1200-12PI | 功能描述:IC MCU 1K FLSH 12MHZ IT 20DIP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:AVR® 90S 标准包装:9 系列:87C 核心处理器:8051 芯体尺寸:8-位 速度:40/20MHz 连通性:UART/USART 外围设备:POR，WDT 输入/输出数:32 程序存储器容量:32KB（32K x 8） 程序存储器类型:OTP EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:- 振荡器型:内部 工作温度:0°C ~ 70°C 封装/外壳:40-DIP（0.600"，15.24mm） 包装:管件 |
| AT90S1200-12SC | 功能描述:8位微控制器 -MCU 1K Flash 5V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
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