参数资料
型号: R5F21248SDFP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52
封装: 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52
文件页数: 7/59页
文件大小: 528K
代理商: R5F21248SDFP
R8C/24 Group, R8C/25 Group
2. Central Processing Unit (CPU)
Rev.3.00
Feb 29, 2008
Page 15 of 51
REJ03B0117-0300
2.8.7
Interrupt Enable Flag (I)
The I flag enables maskable interrupts.
Interrupt are disabled when the I flag is set to 0, and are enabled when the I flag is set to 1. The I flag is set to 0
when an interrupt request is acknowledged.
2.8.8
Stack Pointer Select Flag (U)
ISP is selected when the U flag is set to 0; USP is selected when the U flag is set to 1.
The U flag is set to 0 when a hardware interrupt request is acknowledged or the INT instruction of software
interrupt numbers 0 to 31 is executed.
2.8.9
Processor Interrupt Priority Level (IPL)
IPL is 3 bits wide and assigns processor interrupt priority levels from level 0 to level 7.
If a requested interrupt has higher priority than IPL, the interrupt is enabled.
2.8.10
Reserved Bit
If necessary, set to 0. When read, the content is undefined.
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PDF描述
R5F21244SDXXXFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52
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相关代理商/技术参数
参数描述
R5F21248SDFP#U0 制造商:Renesas Electronics Corporation 功能描述:MCU 16-bit R8C CISC 64KB Flash 3.3V/5V 52-Pin LQFP Tray 制造商:Renesas Electronics Corporation 功能描述:MCU 16-Bit R8C CISC 64KB Flash 3.3V/5V 52-Pin LQFP Tray 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 64KB FLASH 52LQFP 制造商:Renesas Electronics Corporation 功能描述:R8C Series 16 Bit 3 kB Ram 64 kB Flash 20 MHz Microcontroller - LQFP-52
R5F21248SDFP#V0 功能描述:IC R8C/24 MCU FLASH 52LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:R8C/2x/24 标准包装:250 系列:80C 核心处理器:8051 芯体尺寸:8-位 速度:16MHz 连通性:EBI/EMI,I²C,UART/USART 外围设备:POR,PWM,WDT 输入/输出数:40 程序存储器容量:- 程序存储器类型:ROMless 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:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-LCC(J 形引线) 包装:带卷 (TR)
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