參數(shù)資料
型號: R5F21245SNXXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52
封裝: 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52
文件頁數(shù): 9/61頁
文件大?。?/td> 529K
代理商: R5F21245SNXXXFP
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R5F21245SNXXXLG 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU
R5F21245SYXXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU
R5F21245SYXXXLG 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU
R5F21246SDFP 制造商:Renesas Electronics 功能描述:16 R8C/2x 20MHz 52LQFP 32KB Tray
R5F21246SDFP#U0 制造商:Renesas Electronics Corporation 功能描述:MCU 16-Bit R8C CISC 32KB Flash 3.3V/5V 52-Pin LQFP Tray 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT R8C CISC 32KB FLASH 3.3V/5V 52LQFP - Trays 制造商:Renesas Electronics 功能描述:M16C 20MHz 制造商:Renesas 功能描述:MCU 16-Bit R8C CISC 32KB Flash 3.3V/5V 52-Pin LQFP Tray