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参数资料
| 型号： | ST7PLU09MCTRE |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO8 |
| 封装： | 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8 |
| 文件页数： | 60/124页 |
| 文件大小： | 1995K |
| 代理商： | ST7PLU09MCTRE |
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Interrupts
ST7LUS5, ST7LU05, ST7LU09
Note:
1
These 8 bits can be written only when the I bit in the CC register is set.
2
Changing the sensitivity of a particular external interrupt clears this pending interrupt. This
can be used to clear unwanted pending interrupts. Refer to section External interrupt
7.3.2
External interrupt control register 2 (EICR2)
Note:
1
These 8 bits can be written only when the I bit in the CC register is set.
2
Changing the sensitivity of a particular external interrupt clears this pending interrupt. This
can be used to clear unwanted pending interrupts. Refer to section External interrupt
3
IS4[1:0] = 01 is the only safe configuration to avoid a spurious interrupt in Halt and AWUFH
modes.
3:2
IS1[1:0]
ei1 sensitivity
These bits define the interrupt sensitivity for ei1 according to Table 18.
1:0
IS0[1:0]
ei0 sensitivity
These bits define the interrupt sensitivity for ei0 according to Table 18.
Table 16.
EICR1 register description (continued)
Bit
Name
Function
EICR2
Reset value: 0000 0000 (00h)
7
654
32
10
Reserved
IS4[1:0]
IS3[1:0]
-R/W
R/W
Table 17.
EICR2 register description
Bit
Name
Function
7:4
-
Reserved
3:2
IS4[1:0]
ei4 sensitivity
These bits define the interrupt sensitivity for ei1 according to Table 18.
1:0
IS3[1:0]
ei3 sensitivity
These bits define the interrupt sensitivity for ei0 according to Table 18.
Table 18.
Interrupt sensitivity bits
ISx1
ISx0
External interrupt sensitivity
0
Falling edge and low level
0
1
Rising edge only
1
0
Falling edge only
1
Rising and falling edge
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