參數(shù)資料
型號: COP8CSDR9KMT7
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 微控制器/微處理器
英文描述: 8-Bit CMOS Flash Based Microcontroller with 32k Memory, Virtual EEPROM and Brownout
中文描述: 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDSO56
封裝: TSSOP-56
文件頁數(shù): 55/80頁
文件大小: 972K
代理商: COP8CSDR9KMT7
15.0 Interrupts
(Continued)
STPND flag will have the wrong state. This will allow
maskable interrupts to be acknowledged during the servicing
of the first Software Trap. To avoid problems such as this, the
user program should contain the Software Trap routine to
perform a recovery procedure rather than a return to normal
execution.
Under normal conditions, the STPND flag is reset by a
RPND instruction in the Software Trap service routine. If a
programming error or hardware condition (brownout, power
supply glitch, etc.) sets the STPND flag without providing a
way for it to be cleared, all other interrupts will be locked out.
To alleviate this condition, the user can use extra RPND
instructions in the main program and in the Watchdog ser-
vice routine (if present). There is no harm in executing extra
RPND instructions in these parts of the program.
10138934
FIGURE 28. VIS Flow Chart
C
www.national.com
55
相關(guān)PDF資料
PDF描述
COP8SBR9HLQ8 8-Bit CMOS Flash Based Microcontroller with 32k Memory, Virtual EEPROM and Brownout
COP8SCR9HLQ8 8-Bit CMOS Flash Based Microcontroller with 32k Memory, Virtual EEPROM and Brownout
COP8SDR9HLQ8 8-Bit CMOS Flash Based Microcontroller with 32k Memory, Virtual EEPROM and Brownout
COP8SCR9HVA7 8-Bit CMOS Flash Based Microcontroller with 32k Memory, Virtual EEPROM and Brownout
COP8SDR9HVA7 8-Bit CMOS Flash Based Microcontroller with 32k Memory, Virtual EEPROM and Brownout
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
COP8-DB-TAC 功能描述:開發(fā)板和工具包 - 其他處理器 COP8TAC DEV BOARD RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
COP8-DM/840CJ 功能描述:開發(fā)板和工具包 - 其他處理器 COP8 DEBUG MODULE RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
COP8-DM/880C 功能描述:開發(fā)板和工具包 - 其他處理器 COP8 BASIC FAMILY DEBUG MODULE RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
COP8-DM/888BC 功能描述:開發(fā)板和工具包 - 其他處理器 COP8 DEBUG MODULE RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
COP8-DM/888CF 功能描述:開發(fā)板和工具包 - 其他處理器 COP8 DEBUG MODULE RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: