M38049FFHKP datasheet(215/387 Pages) RENESAS

215 / 387 page

2-91

APPLICATION

2.5 Multi-master I2C-BUS interface

Rev.1.00 Jan 14, 2005

REJ09B0212-0100Z

3804 Group (Spec.H)

Fig. 2.5.10 Structure of I2C slave address register i (i = 0 to 2)

I2C slave address register i (i = 0 to 2)

b7 b6 b5 b4 b3 b2 b1 b0

I2C slave address register i (i = 0 to 2)

(S0D0, S0D1, S0D2: addresses 0FF716, 0FF816, 0FF916)

Read/Write bit

(RWB)

0: Write bit

1: Read bit

The contents of these bits

are compared with the

address data transmitted

from master.

Functions

Name

At reset R W

Slave address

(SAD0, SAD1, SAD2,

SAD3, SAD4, SAD5,

SAD6)

Note: When the read-modify-write instructions (SEB, CLB) are used at

detection of stop condition, the values may be undefined.

Fig. 2.5.11 Structure of Interrupt source selection register

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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