參數(shù)資料
型號: MC68HC05C9AMP
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP40
封裝: PLASTIC, DIP-40
文件頁數(shù): 72/124頁
文件大?。?/td> 774K
代理商: MC68HC05C9AMP
Timer During Wait Mode
MC68HC05C9A Advance Information Data Sheet, Rev. 5.1
Freescale Semiconductor
51
To prevent OCF from being set between the time it is read and the time the output compare registers are
updated, use this procedure:
1.
Disable interrupts by setting the I bit in the CCR.
2.
Write to OCRH. Compares are now inhibited until OCRL is written.
3.
Clear bit OCF by reading timer status register (TSR).
4.
Enable the output compare function by writing to OCRL.
5.
Enable interrupts by clearing the I bit in the CCR.
8.4 Timer During Wait Mode
The central processor unit (CPU) clock halts during wait mode, but the timer remains active. If interrupts
are enabled, a timer interrupt will cause the processor to exit wait mode.
8.5 Timer During Stop Mode
In stop mode, the timer stops counting and holds the last count value if STOP is exited by an interrupt. If
STOP is exited by reset, the counters are forced to $FFFC. During STOP, if at least one valid input
capture edge occurs at the TCAP pins, the input capture detect circuit is armed. This does not set any
timer flags or wake up the microcontroller unit (MCU). But if an interrupt is used to exit stop mode, there
is an active input capture flag and data from the first valid edge that occurred during the stop mode. If
reset is used to exit stop mode, then no input capture flag or data remains, even if a valid input capture
edge occurred.
相關PDF資料
PDF描述
MC68HC05C9ECP 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP40
MC68HC05CC2B 8-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PDIP42
MC68HC05CJ4FB 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
MC68HC705CJ4FB 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP44
MC68HC05E0FN 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQCC68
相關代理商/技術參數(shù)
參數(shù)描述
MC68HC05C9AP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9CP 制造商:Motorola Inc 功能描述:IC UP HCMOS 68HC05C9CP DIP40 0
MC68HC05C9E 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9ECFB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9ECP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers