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R8C/15 датащи(PDF) 74 Page - Renesas Technology Corp

номер детали R8C/15
подробное описание детали  16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / R8C/Tiny SERIES
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R8C/14 Group, R8C/15 Group
11. Interrupt
Rev.2.10
Jan 19, 2006
Page 62 of 253
REJ09B0164-0210
Figure 11.4
INT0IC Register
INT0 Interrupt Control Register
(2)
Symbol
Address
After Reset
INT01C
005Dh
XX00X000b
Bit Symbol
Bit Name
Function
RW
NOTES :
1.
2.
3.
4.
—
(b7-b6)
—
Nothing is assigned. When w rite, set to “0”.
When read, its content is indeterminate.
Only “0” can be w ritten to the IR bit. (Do not w rite “1”.)
—
(b5)
Reserved Bit
Set to “0”
RW
POL
Polarity Sw itch Bit(4)
0 : Selects falling edge
1 : Selects rising edge(3)
RW
IR
Interrupt Request Bit
0 : Requests no interrupt
1 : Requests interrupt
RW(1)
ILVL0
RW
Interrupt Priority Level Select Bit
b2 b1 b0
0 0 0 : Level 0 (interrupt disable)
0 0 1 : Level 1
0 1 0 : Level 2
0 1 1 : Level 3
1 0 0 : Level 4
1 0 1 : Level 5
1 1 0 : Level 6
1 1 1 : Level 7
ILVL1
RW
ILVL2
RW
b0
0
To rew rite the interrupt control register, rew rite it w hen the interrupt request w hich is applicable for its register is not
generated. Refer to 20.2.6 Changing Interrupt Control Registers.
If the INTOPL bit in the INTEN register is set to “1” (both edges), set the POL bit to “0” (selects falling edge).
The IR bit may be set to “1” (requests interrupt) w hen the POL bit is rew ritten. Refer to 20.2.5 Changing Interrupt
Factor.
b7 b6 b5 b4 b3 b2 b1



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