r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 183

• Manufacturer Part Number: r5f21346mnfp
• Description: Single-chip Mcus Incorporates The R8c Cpu Core
• Manufacturer: Renesas Electronics Corporation.

R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
11.2.3
Notes:
1. Only 0 can be written to the IR bit. (Do not write 1 to this bit.)
2. If the INTiPL bit in the INTEN register is set to 1 (both edges), set the POL bit to 0 (falling edge selected).
3. The IR bit may be set to 1 (interrupt requested) when the POL bit is rewritten. Refer to 11.8.4 Changing
After Reset
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 0046h (INT4IC), 0055h (INT2IC), 0059h (INT1IC), 005Ah (INT3IC),
Interrupt Sources .
Rewrite the interrupt control register when an interrupt request corresponding to the register is not generated.
Refer to 11.8.5 Rewriting Interrupt Control Register.
Symbol
Symbol
Bit
ILVL1
ILVL2
ILVL0
POL
INTi Interrupt Control Register (INTiIC) (i = 0 to 4)
IR
—
—
—
005Dh (INT0IC)
b7
—
X
Interrupt priority level select bit
Interrupt request bit
Polarity switch bit
Reserved bit
Nothing is assigned. If necessary, set to 0.
When read, the content is undefined.
b6
—
X
Bit Name
(3)
b5
—
0
POL
b4
0
b2 b1 b0
0: No interrupt requested
1: Interrupt requested
0: Falling edge selected
1: Rising edge selected
Set to 0.
0 0 0: Level 0 (interrupt disabled)
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
b3
IR
X
ILVL2
b2
0
Function
(2)
ILVL1
b1
0
ILVL0
b0
0
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11. Interrupts
R/W
R/W
R/W
R/W
R/W
R/W
R/W
(1)
—