7643 datasheet(127/424 Pages) RENESAS

127 / 424 page

Rev.2.00

Aug 28, 2006

page 6 of 202

7643 Group

REJ09B0133-0200

APPLICATION

2.1 I/O Port

Fig. 2.1.8 Structure of Interrupt request register C

Fig. 2.1.9 Structure of Interrupt control register C

Interrupt request register C

b7 b6 b5 b4 b3 b2 b1 b0

Interrupt request register C

(IREQC : address 0416)

Name

Functions

At reset R W

Timer 3 interrupt request

bit

Serial I/O interrupt request

bit

Key input interrupt request

bit

0 : No interrupt request issued

1 : Interrupt request issued

0 : No interrupt request issued

1 : Interrupt request issued

0 : No interrupt request issued

1 : Interrupt request issued

✽

✽: “0” can be set by software, but “1” cannot be set.

Nothing is arranged for these bits.

When these bits are read out, the contents are undefined.

These bits are “0” at write.

Nothing is arranged for these bits.

When these bits are read out, the contents are undefined.

These bits are “0” at write.

Nothing is arranged for this bit.

Fix this bit to “0”.

Interrupt control register C

b7 b6 b5 b4 b3 b2 b1 b0

Interrupt control register C

(ICONC : address 0716)

Name

Functions

At reset R W

Timer 3 interrupt enable bit

Serial I/O interrupt enable

bit

Key input interrupt enable

bit

0 : Interrupt disabled

1 : Interrupt enabled

0 : Interrupt disabled

1 : Interrupt enabled

0 : Interrupt disabled

1 : Interrupt enabled

00 0

0 0

Nothing is arranged for this bit.

Fix this bit to “0”.

Nothing is arranged for these bits.

Fix these bits to “0”.

Nothing is arranged for these bits.

Fix these bits to “0”.

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