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| 型号： | MC68HC705J5ACDWR3 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | SOIC-20 |
| 文件页数： | 59/106页 |
| 文件大小： | 1069K |
| 代理商： | MC68HC705J5ACDWR3 |
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GENERAL RELEASE SPECIFICATION
July 16, 1999
MOTOROLA
MULTI-FUNCTION TIMER
MC68HC05J5A
8-4
REV 2.1
RTIF - Real Time Interrupt Flag
The RTIF is a read-only ag bit.
1 =
Set when the output of the chosen (1 of 4 selections) Real Time
Interrupt stage goes active. A TIMER Interrupt request will be
generated if RTIE is also set.
0 =
Reset by writing a logical one to the RTIF acknowledge bit, RTIFR.
Writing to the RTIF ag bit has no effect on its value. This bit is
cleared by reset.
TOFE - Timer Overow Enable
The TOFE is an enable bit that allows generation of a TIMER Interrupt upon
overow of the Timer Counter Register.
1 =
When set, the TIMER Interrupt is generated when the TOF ag bit is
set.
0 =
When cleared, no TIMER interrupt caused by TOF bit set will be
generated. This bit is cleared by reset.
RTIE - Real Time Interrupt Enable
The RTIE is an enable bit that allows generation of a TIMER Interrupt by the
RTIF bit.
1 =
When set, the TIMER Interrupt is generated when the RTIF ag bit is
set.
0 =
When cleared, no TIMER interrupt caused by RTIF bit set will be
generated. This bit is cleared by reset.
TOFR - Timer Overow Acknowledge
The TOFR is an acknowledge bit that resets the TOF ag bit. This bit is unaf-
fected by reset. Reading the TOFR will always return a logical zero.
1 =
Clears the TOF ag bit.
0 =
Does not clear the TOF ag bit.
RTIFR - Real Time Interrupt Acknowledge
The RTIFR is an acknowledge bit that resets the RTIF ag bit. This bit is unaf-
fected by reset. Reading the RTIFR will always return a logical zero.
1 =
Clears the RTIF ag bit.
0 =
Does not clear the RTIF ag bit.
RT1, RT0 - Real Time Interrupt Rate Select
The RT0 and RT1 control bits select one of four taps for the Real Time Interrupt
RT0 and RT1 control bits are set by reset, selecting the lowest periodic rate and
therefore the maximum time in which to alter these bits if necessary. Care
should be taken when altering RT0 and RT1 if the time-out period is imminent
or uncertain. If the selected tap is modied during a cycle in which the counter
is switching, an RTIF could be missed or an additional one could be generated.
To avoid problems, the COP should be cleared just prior to changing RTI taps.
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相关代理商/技术参数 |
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|---|---|
| MC68HC705J5ACP | 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| MC68HC705JB4DW | 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| MC68HC705JJ7CDW | 功能描述:IC MCU 8BIT 20-SOIC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C，IrDA，LIN，SPI，UART/USART 外围设备:DMA，PDR，POR，PVD，PWM，温度传感器，WDT 输入/输出数:26 程序存储器容量:64KB（64K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN，36-VFQFPN 包装:托盘 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名称:497-9032STM32F101T8U6-ND |
| MC68HC705JP7CDW | 功能描述:IC MCU 8BIT 28-SOIC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C，IrDA，LIN，SPI，UART/USART 外围设备:DMA，PDR，POR，PVD，PWM，温度传感器，WDT 输入/输出数:26 程序存储器容量:64KB（64K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN，36-VFQFPN 包装:托盘 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名称:497-9032STM32F101T8U6-ND |
| MC68HC705JP7CP | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
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