M16CSLASH26 datasheet(56/239 Pages) RENESAS

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Interrupts

M16C/26 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Under

development

Preliminary Specifications Rev. 0.9

Specifications in this manual are tentative and subject to change.

Figure 1.9.3. Interrupt control registers

Symbol

Address

When reset

INTiIC(i=3)

004416

XX00X0002

INTiIC(i=4, 5)

004916, 004816

XX00X0002

INTiIC(i=0, 1)

005D16, 005E16

XX00X0002

Bit name

Function

Bit symbol

ILVL0

POL

Nothing is assigned.

In an attempt to write to these bits, write 0 . The value, if read, turns

out to be indeterminate.

Interrupt priority level

select bit

Interrupt request bit

Polarity select bit

Reserved bit

0: Interrupt not requested

1: Interrupt requested

0 : Selects falling edge

1 : Selects rising edge

Must always be set to 0

ILVL1

ILVL2

Note 1: This bit can only be accessed for reset (= 0), but cannot be accessed for set (= 1).

Note 2: To rewrite the interrupt control register, do so at a point that does not generate the

interrupt request for that register. For details, see the precautions for interrupts.

(Note 1)

Interrupt control register (Note 2)

Bit name

Function

Bit symbol

Symbol

Address

When reset

BCNIC

004A 16

XXXXX0002

DMiIC(i=0, 1)

004B16, 004C 16

XXXXX0002

KUPIC

004D 16

XXXXX0002

ADIC

004E 16

XXXXX0002

SiTIC(i=0 to 2)

005116, 005316, 004F16

XXXXX0002

SiRIC(i=0 to 2)

005216, 005416, 005016

XXXXX0002

TAiIC(i=0 to 4)

005516 to 005916

XXXXX0002

TBiIC(i=0 to 2)

005A16 to 005C16

XXXXX0002

ILVL0

Interrupt priority level

select bit

Interrupt request bit

0 : Interrupt not requested

1 : Interrupt requested

ILVL1

ILVL2

Nothing is assigned.

In an attempt to write to these bits, write 0 . The value, if read, turns

out to be indeterminate.

(Note 1)

Note 1: This bit can only be accessed for reset (= 0), but cannot be accessed for set (= 1).

Note 2: To rewrite the interrupt control register, do so at a point that does not generate the

interrupt request for that register. For details, see the precautions for interrupts.

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

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