R8C11 datasheet(64/227 Pages) RENESAS

64 / 227 page

R8C/11 Group

Rev.1.20

Jan 27, 2006

page 53 of 204

REJ09B0062-0120

Figure 10.3 Interrupt Control Registers

Symbol

Address

After reset

INT0IC

005D16

XX00X0002

Bit name

Function

Bit symbol

ILVL0

POL

Interrupt priority level

select bit

Interrupt request bit

Polarity select bit(3, 4)

Reserved bit

0: Interrupt not requested

1: Interrupt requested

0 : Selects falling edge

1 : Selects rising edge

Set to “0”

ILVL1

ILVL2

NOTES:

1. Only "0" can be written to the IR bit. (Do not write "1").

2. To rewrite the interrupt control register, do so at a point that does not generate the interrupt request for that register.

Refer to the paragraph 19.2.6 “Changing Interrupt Control Registers”.

3. If the INTOPL bit in the INTEN register is set to “1” (both edges), set the POL bit to "0 " (selecting falling edge).

4. The IR bit may be set to “1” (interrupt requested) when the POL bit is rewritten. Refer to the paragraph 19.2.5

“Changing Interrupt Factor” .

Interrupt control register(2)

b7b6b5b4b3b2b1b0

Bit name

Function

Bit symbol

SymbolAddressAfter reset

KUPIC004D16

XXXXX0002

ADIC004E16

XXXXX0002

CMP1IC005016

XXXXX0002

S0TIC, S1TIC005116, 005316

XXXXX0002

S0RIC, S1RIC005216, 005416

XXXXX0002

INT2IC005516

XXXXX0002

TXIC005616

XXXXX0002

TYIC005716

XXXXX0002

TZIC005816

XXXXX0002

INT1IC005916

XXXXX0002

INT3IC005A16

XXXXX0002

TCIC005B16

XXXXX0002

CMP0IC005C16

XXXXX0002

ILVL0

Interrupt priority level

select bit

Interrupt request bit

0 : Interrupt not requested

1 : Interrupt requested

ILVL1

ILVL2

Nothing is assigned.

When write, set to “0”. When read, its content is indeterminate.

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

b2 b1 b0

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

b2 b1 b0

RW(1)

(b7-b4)

RW(1)

(b7-b6)

Nothing is assigned.

When write, set to “0”. When read, its content is indeterminate.

(b5)

10.1 Interrupt Overview

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