M37160MF datasheet(119/131 Pages) RENESAS

119 / 131 page

Rev.1.01

2003.11.13

page 119 of 130

M37160M8/MA/MF-XXXSP/FP,M37160EFSP/FP

b7 b6 b5 b4 b3 b2 b1 b0

Name

Functions

After reset RW

Read/write bit

(RBW)

Slave address

(SAD0 to SAD6)

The last significant bit of address data is

compared.

0: Wait the first byte of slave address after

START condition

(read state)

1: Wait the first byte of slave address after

RESTART condition (write state)

The address data is compared.

I2C Address Register

I2C address register (S0D) [Address 00F716]

R —

b3 b2 b1 b0

I2C status register (S1) [Address 00F816]

6, 7

b7 b6

0 : Slave recieve mode

1 : Slave transmit mode

0 : Master recieve mode

1 : Master transmit mode

Name

Functions

After reset

Communication mode

specification bits

(TRX, MST)

0 : Bus free

1 : Bus busy

Bus busy flag (BB)

0 : Interrupt request issued

1 : No interrupt request issued

I2C-BUS interface interrupt

request bit (PIN)

0 : Not detected

1 : Detected

Arbitration lost detecting flag

(AL) (See note)

0 : Address mismatch

1 : Address match

Slave address comparison

flag (AAS) (See note)

0 : No general call detected

1 : General call detected

General call detecting flag

(AD0) (See note)

0 : Last bit = “0 ”

1 : Last bit = “1 ”

Last receive bit (LRB)

(See note)

Note : These bits and flags can be read out, but cannnot be written.

Indeterminate

—

R —

(See note)

Address 00F716

Address 00F816

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