參數資料
型號: M30302MA-XXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, MICROCONTROLLER, PQFP100
封裝: 14 X 20 MM, PLASTIC, QFP-100
文件頁數: 133/177頁
文件大?。?/td> 2355K
代理商: M30302MA-XXXFP
______
INT Interrupt
59
Mitsubishi microcomputers
M16C / 30 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
______
INT Interrupt
________
INT0 to INT2 are triggered by the edges of external inputs. The edge polarity is selected using the polarity
select bit.
As for external interrupt input, an interrupt can be generated both at the rising edge and at the falling edge
by setting “1” in the INTi interrupt polarity switching bit of the interrupt request cause select register
(035F16). To select both edges, set the polarity switching bit of the corresponding interrupt control register
to ‘falling edge’ (“0”).
Figure 1.11.10 shows the Interrupt request cause select register.
Figure 1.11.10. Interrupt request cause select register
Interrupt request cause select register
Bit name
Function
Bit symbol
W
R
Symbol
Address
When reset
IFSR
035F16
0016
IFSR0
b7
b6
b5
b4
b3
b2
b1
b0
INT0 interrupt polarity
switching bit
0 : One edge
1 : Two edges
0 : One edge
1 : Two edges
0 : One edge
1 : Two edges
Must always be set to “0”
INT1 interrupt polarity
switching bit
INT2 interrupt polarity
switching bit
IFSR1
IFSR2
Reserved bit
Must always be set to “0”
0
000
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