參數(shù)資料
型號: AT80C51RD2
廠商: Atmel Corp.
英文描述: ER 6C 3#16 3#8 SKT RECP BOX
中文描述: 80C51的高性能ROM的8位微控制器
文件頁數(shù): 46/81頁
文件大?。?/td> 1082K
代理商: AT80C51RD2
47
AT80C51RD2/AT83C51Rx2
4113A–8051–09/02
Registers
The PCA interrupt vector is located at address 0033H, the Keyboard interrupt vector is
located at address 004BH. All other vectors addresses are the same as standard C52
devices.
Table 32.
Priority Level Bit Values
A low-priority interrupt can be interrupted by a high priority interrupt, but not by another
low-priority interrupt. A high-priority interrupt can’t be interrupted by any other interrupt
source.
If two interrupt requests of different priority levels are received simultaneously, the
request of higher priority level is serviced. If interrupt requests of the same priority level
are received simultaneously, an internal polling sequence determines which request is
serviced. Thus within each priority level there is a second priority structure determined
by the polling sequence.
IPH.x
IPL.x
Interrupt Level Priority
0
0
0 (Lowest)
0
1
1
1
0
2
1
1
3 (Highest)
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AT80C51RD2-3CSIM 功能描述:IC MCU 8051 5V SPI 20MHZ 40-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:80C 標(biāo)準(zhǔn)包裝:9 系列:87C 核心處理器:8051 芯體尺寸:8-位 速度:40/20MHz 連通性:UART/USART 外圍設(shè)備:POR,WDT 輸入/輸出數(shù):32 程序存儲器容量:32KB(32K x 8) 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:0°C ~ 70°C 封裝/外殼:40-DIP(0.600",15.24mm) 包裝:管件