參數(shù)資料
型號(hào)： M30100
廠商： Renesas Technology Corp.
英文描述： SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述： 單片16位CMOS微機(jī)
文件頁數(shù)： 51/164頁
文件大小： 3302K
代理商： M30100
deveopment
Tentative Specifications REV.E1
Interrupts
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
50
External input enable register
AA
A
Bit name
Function
Bit symbol
W
R
Symbol
INTEN
Address
0096
16
When reset
00
16
INT0EN
b7
b6
b5
b4
b3
b2
b1
b0
AA
A
INT0 input enable bit
0 : Disabled
1 : Enabled
0 : One edge
1 : Two edges
0 : Disabled
1 : Enabled
0 : One edge
1 : Two edges
0 : Disabled
1 : Enabled
INT0 input polarity select bit
INT1 input enable bit
INT1 input polarity select bit
INT2 input enable bit
INT2 input polarity select bit
0 : One edge
1 : Two edges
INT0PL
INT1EN
INT1PL
INT2EN
INT2PL
A
AA
AA
AA
AA
AA
AA
AA
AA
INT3 input enable bit
0 : Disabled
1 : Enabled
INT3EN
INT3 input polarity select bit
0 : One edge
1 : Two edges
INT3PL
INT0 input filter select register
AA
A
Bit name
Function
Bit symbol
W
R
AA
Symbol
INT0F
Address
001E
16
When reset
XXXXX000
2
INT0F0
b7
b6
b5
b4
b3
b2
b1
b0
AA
A
INT0 input filter select bit
0 0 : No filter
0 1 : Filter with f
1
sampling
1 0 : Filter with f
8
sampling
1 1 : Filter with f
32
sampling
0 : Disabled
1 : Enabled
UART0 receive hardware
interrupt enable bit (Note)
INT0F1
INT0F2
AA
–
–
AA
b1 b0
Note: Interrupts used for debugging purposes only.
(Note)
(Note)
Note : This bit must be set in condition of INT0 pin one-shot trigger invalid (INOSTG="0").
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read,
turns out to be
indeterminate.
INT Interrupt
INT0 to INT3 are triggered by the edges of external inputs. The edge polarity of INT0 to INT2 is selected
using the polarity select bit (bit 4 of addresses 005D
16
, 005E
16
and 005F
16
). Input to INT0 is available via
filter with three different sampling frequencies.
As to external interrupt input, an interrupt can be generated both at the rising edge and at the falling edge by
setting the INTi (i=0 to 3) input polarity select bit of the external input enable register (0096
16
) to “1”. To
select both edges, set the polarity switching bit of the corresponding interrupt control register to “0” (falling
edge). To select one edge, set the polarity switching bit of the corresponding interrupt control register to
either “1” (raising edge) or “0” (falling edge). Please note that when one edge is selected using INT3, the
polarity will be a falling edge.
After setting the external input enable register, clear the interrupt request bit, and then enable the corre-
sponding input interrupt. Moreover, you should write to the external input enable bit only under conditions
where the corresponding input interrupt is disabled.
Figure 1.12.10 shows the external input related registers.
Figure 1.12.10. External input related registers
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