參數(shù)資料
型號: MC68HC05K3CDWR2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO16
封裝: SOIC-16
文件頁數(shù): 72/132頁
文件大小: 1188K
代理商: MC68HC05K3CDWR2
Technical Data
MC68HC05K3 — Revision 4.0
44
Interrupts
MOTOROLA
Interrupts
If the mask option for edge-sensitive only IRQ is used, only the IRQ
latch output can activate an IRQF flag which creates a request to the
CPU to generate the IRQ interrupt sequence. This makes the IRQ
interrupt sensitive to these cases:
If the port A interrupts are disabled by a mask option, only a falling
edge on the IRQ pin initiates an IRQ interrupt.
If the port A interrupts are enabled by a mask option, these
conditions initiate an IRQ interrupt:
A falling edge on the IRQ pin with all the PA0–PA3 pins at a
low level
A rising edge on one PA0–PA3 pin with all other PA0–PA3 pins
at a low level and the IRQ pin at a high level
If the mask option for edge- and level-sensitive IRQ is used, the active
high state of the IRQ latch input also can activate an IRQF flag, which
creates a request to the CPU to generate the IRQ interrupt sequence.
This makes the IRQ interrupt sensitive to these cases:
If the port A interrupts are disabled by a mask option, only these
conditions initiate an IRQ interrupt:
A low level on the IRQ pin
Falling edge on the IRQ pin
If the port A interrupts are enabled by a mask option, these
conditions initiate an IRQ interrupt:
A low level on the IRQ pin with all the PA0–PA3 pins at a low
level
Falling edge on the IRQ pin with all the PA0–PA3 pins at a low
level
High level on any one of the PA0–PA3 pins with the IRQ pin at
a high level
Rising edge on any PA0–PA3 pin with all other PA0–PA3 pins
at a low level and the IRQ pin at a high level
The IRQE enable bit controls whether an active IRQF flag can generate
an IRQ interrupt sequence. This interrupt is serviced by the interrupt
相關PDF資料
PDF描述
MC68HC05K3DWR2 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO16
MC68HC05L25PB 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP52
MC68HC05L2CB 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP42
MC68HC705L2K 8-BIT, UVPROM, 2.1 MHz, MICROCONTROLLER, CDIP42
MC68HC05L6FN 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC68
相關代理商/技術參數(shù)
參數(shù)描述
MC68HC05K3CP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05K3CSD 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05K3DW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05K3P 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05L10 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcomputer Unit