參數(shù)資料
型號: R5F21193NP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQCC28
封裝: 5 X 5 MM, 0.50 MM PITCH, PLASTIC, WQFN-28
文件頁數(shù): 7/41頁
文件大?。?/td> 725K
代理商: R5F21193NP
R8C/18 Group, R8C/19 Group
2. Central Processing Unit (CPU)
Rev.1.40
Apr 14, 2006
Page 15 of 38
REJ03B0124-0140
2.8.7
Interrupt Enable Flag (I)
The I flag enables maskable interrupts.
Interrupts 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, 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.
相關PDF資料
PDF描述
R5F21191DD 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDIP20
R5F21191DSP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDSO20
R5F21194DD 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDIP20
R5F21182DSP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDSO20
R5F21194NP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQCC28
相關代理商/技術參數(shù)
參數(shù)描述
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