- 您现在的位置：买卖IC网 > PDF目录80398 > MC68HC705CL16 (FREESCALE SEMICONDUCTOR INC) 8-BIT, OTPROM, 1.802 MHz, MICROCONTROLLER, PQFP100 PDF资料下载
参数资料
| 型号： | MC68HC705CL16 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 1.802 MHz, MICROCONTROLLER, PQFP100 |
| 封装： | TQFP-100 |
| 文件页数： | 75/145页 |
| 文件大小： | 673K |
| 代理商： | MC68HC705CL16 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页当前第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页
June 11, 1997
GENERAL RELEASE SPECIFICATION
MC68HC05CL48
INTERRUPTS
MOTOROLA
REV 2.0
4-3
4.1
RESET INTERRUPT SEQUENCE
The RESET function is not in the strictest sense an interrupt; however, it is acted
upon in a similar manner as shown in Figure 4-1. A low level input on the RESET
pin or internal generated reset signal causes the program to vector to its starting
address which is specied by the contents of memory locations $FFFE and
$FFFF. The I-bit in the condition code register is also set. The MCU is congured
to a known state during this type of reset as described in Section 5.
4.2
SOFTWARE INTERRUPT (SWI)
The SWI is an executable instruction and a non-maskable interrupt since it is
executed regardless of the state of the I-bit in the CCR. If the I-bit is zero
(interrupts enabled), the SWI instruction executes after interrupts which were
pending before the SWI was fetched, or before interrupts if interrupts were
generated after the SWI was fetched. The interrupt service routine address is
specied by the contents of memory locations $FFFC and $FFFD.
4.3
HARDWARE INTERRUPTS
All hardware interrupts except RESET are maskable by the I-bit in the CCR. If the
I-bit is set, all hardware interrupts (internal and external) are disabled. Clearing
the I-bit enables the hardware interrupts. There are six types of hardware
interrupts which are explained in the following sections.
4.3.1 External Interrupt (IRQ)
If the IRQ option is both level and edge sensitive triggering (INTO=0), a low level
or an negative edge at the IRQ pin and the interrupt mask bit of the condition code
register is cleared will cause an EXTERNAL Interrupt to occur. If the MCU has
nished with the interrupt service routine, but the IRQ pin is still low, the
EXTERNAL Interrupt will start again. In fact, the MCU will keep on servicing the
EXTERNAL Interrupt as long as the IRQ pin is low. If the IRQ pin goes low for a
while and resumes to high (a negative pulse) before the interrupt mask bit is
cleared, the MCU will not recognize there was an interrupt request, and no
interrupt will occur after the interrupt mask bit is cleared, i.e. there is no latch for
the interrupt signal for the level sensitive triggering.
If the IRQ option is negative edge sensitive triggering (INTO=1), a negative edge
occurs at the IRQ pin and the interrupt mask bit of the condition code register is
cleared will cause an EXTERNAL Interrupt to occur. If the MCU has nished with
the interrupt service routine, but the IRQ pin has not resumed back to high, no
further interrupt will be generated. The interrupt logic recognizes negative edge
transitions and pulses (special case of negative edges) only. If the negative edge
occurs during the interrupt mask bit is set, the interrupt signal will be latched, an
相关PDF资料 |
PDF描述 |
|---|---|
| MC68HC705MC4VDW | 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDSO28 |
| MSP430F2002TRSA | 16-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQCC16 |
| MPC8280CZUSLDX | 32-BIT, 375 MHz, RISC PROCESSOR, PBGA480 |
| MPC8270CZQUPEX | 32-BIT, 450 MHz, RISC PROCESSOR, PBGA516 |
| MPC8270ZQQLDX | 32-BIT, 333 MHz, RISC PROCESSOR, PBGA516 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC68HC705E6CDW | 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| MC68HC705G1B | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC68HC705J1A | 制造商:Freescale Semiconductor 功能描述: |
| MC68HC705J1ACDW | 功能描述:IC MCU 4MHZ 1.2K OTP 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 |
| MC68HC705J1ACP | 功能描述:IC MCU 4MHZ 1.2K OTP 20-DIP 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 |
发布紧急采购，3分钟左右您将得到回复。