参数资料
型号: R5F21162SP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDSO20
封装: 4.40 X 6.50 MM, 0.65 MM PITCH, PLASTIC, LSSOP-20
文件页数: 6/40页
文件大小: 648K
代理商: R5F21162SP
R8C/16 Group, R8C/17 Group
2. Central Processing Unit (CPU)
Rev.2.00
Jan 30, 2006
Page 12 of 35
REJ03B0101-0200
2.8.7
Interrupt Enable Flag (I)
The I flag enables a maskable interrupt.
An interrupt is 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, 3 bits wide, assigns processor interrupt priority levels from level 0 to level 7.
If a requested interrupt has greater priority than IPL, the interrupt is enabled.
2.8.10
Reserved Bit
When write to this bit, set to “0”. When read, its content is indeterminate.
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相关代理商/技术参数
参数描述
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R5F21163DSP#U0 制造商:Renesas Electronics Corporation 功能描述:MCU 16-bit R8C CISC 12KB Flash 3.3V/5V 20-Pin LSSOP Tube 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT R8C CISC 12KB FLASH 3.3V/5V 20PIN LSSOP - Rail/Tube 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 12KB FLASH 20SSOP
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