參數(shù)資料
型號： MB90F456
廠商： Fujitsu Limited
英文描述： 16-bit Proprietary Microcontroller
中文描述： 16位微控制器專有
文件頁數(shù)： 44/78頁
文件大?。?/td> 680K
代理商： MB90F456
MB90455 Series
44
9.
DTP/External Interrupt Outline
DTP/external interrupt transfers an interrupt request generated by an external peripheral device or a data trans-
mission request to CPU, generating external interrupt request and activating expanded intelligent I/O service.
DTP/external interrupt function
An interrupt request input from external peripheral device to external input pins (INT7 to INT4), just as interrupt
request of peripheral device, generates an interrupt request. The interrupt request generates an external interrupt
and activates expanded intelligent I/O service (EI
2
OS).
If the expanded intelligent I/O service (EI
2
OS) has been disabled by interrupt control register (ICR: ISE=0),
external interrupt function is enabled and branches to interrupt processing.
If the EI
2
OS has been enabled, (ICR: ISE=1), DTP function is enabled and automatic data transmission is
performed by EI
2
OS. After performing specified number of data transmission processes, the process branches
to interrupt processing.
DTP/external interrupt
External interrupt
DTP function
Input pin
4 pins (INT4 to INT7)
Interrupt cause
Specify for each pin with detection level setting register (ELVR).
Input of “H” level/“L” level/rising edge/falling
edge.
Input of “H” level/ “L” level
Interrupt number
#24 (18
H
) , #27 (1B
H
)
Interrupt control
Enabling or disabling output of interrupt request, using DTP/external interrupt permission
register (ENIR).
Interrupt flag
Retaining interrupt cause with DTP/external interrupt cause register (EIRR).
Process selection
Disable EI
2
OS (ICR: ISE=0)
Enable EI
2
OS (ICR: ISE=1)
Process
Branch to external interrupt process
After automatic data transmission by EI
2
OS for
specified number of times, branch to interrupt
process.
相關PDF資料
PDF描述
MB90F456PMT 16-bit Proprietary Microcontroller
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相關代理商/技術參數(shù)
參數(shù)描述
MB90F456PMCR-G 制造商:FUJITSU 功能描述:
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MB90F456PMCR-G-JN-YE1 制造商:FUJITSU 功能描述:
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