M38045FEHKP datasheet(132/387 Pages) RENESAS

132 / 387 page

2-8

APPLICATION

2.2 Interrupt

Rev.1.00 Jan 14, 2005

REJ09B0212-0100Z

3804 Group (Spec.H)

Fig. 2.2.2 Structure of Interrupt source selection register

2.2 Interrupt

This paragraph explains the registers setting method and the notes relevant to the interrupt.

2.2.1 Memory map

Fig. 2.2.1 Memory map of registers relevant to interrupt

003F16

Interrupt control register 1 (ICON1)

Interrupt request register 2 (IREQ2)

Interrupt request register 1 (IREQ1)

003E16

003D16

003C16

Interrupt edge selection register (INTEDGE)

003A16

Interrupt control register 2 (ICON2)

003916

Interrupt source selection register (INTSEL)

2.2.2 Relevant registers

Interrupt source selection register

b7 b6 b5 b4 b3 b2 b1 b0

Interrupt source selection register

(INTSEL: address 003916)

0: INT0 interrupt

1: Timer Z interrupt

Name

Functions

At reset R W

INT0/Timer Z

interrupt source

selection bit (*1)

0: Serial I/O2 interrupt

1: Timer Z interrupt

Serial I/O2/Timer Z

interrupt source

selection bit (*1)

0: INT4 interrupt

1: CNTR2 interrupt

INT4/CNTR2

interrupt source

selection bit

0: INT2 interrupt

1: I2C interrupt

INT2/I2C interrupt

source selection bit

0: CNTR0 interrupt

1: SCL, SDA interrupt

CNTR0/SCL, SDA

interrupt source

selection bit (*2)

0: Serial I/O1 transmit

interrupt

1: SCL, SDA interrupt

Serial I/O1 transmit/

SCL, SDA interrupt

source selection bit

(*2)

CNTR1/Serial I/O3

receive interrupt

source selection bit

AD converter/Serial

I/O3 transmit

interrupt source

selection bit

*1: Do not write 1 to these bits simultaneously.

*2: Do not write 1 to these bits simultaneously.

0: CNTR1 interrupt

1: Serial I/O3 receive

interrupt

0: A/D converter interrupt

1: Serial I/O3 transmit

interrupt

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