参数资料
型号: R8C22
厂商: Renesas Technology Corp.
英文描述: MCU
中文描述: 微控制器
文件页数: 12/52页
文件大小: 471K
代理商: R8C22
R8C/22 Group, R8C/23 Group
2. Central Processing Unit (CPU)
Rev.1.10 Mar 16, 2007
REJ03B0097-0110
Page 12 of 48
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
If necessary, set to 0. When read, the content is undefined.
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相关代理商/技术参数
参数描述
R8C-22 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:MCU
R8C22_08 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:RENESAS MCU
R8C-22_1 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:MCU R8C FAMILY / R8C/2x SERIES
R8C23 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:MCU
R8C24 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU