TMP88CU74F datasheet(82/132 Pages) TOSHIBA

82 / 132 page

TMP88CU74

2003-02-17

88CU74-82

2.10.2

Control

The following registers are used to control the serial bus interface and monitor the

operation status.

•

Serial bus interface control register 1 (SBICR1)

•

Serial bus interface control register 2 (SBICR2)

•

Serial bus interface data buffer register (SBIDBR)

•

I2C bus address register (I2CAR)

•

Serial bus interface status register (SBISR)

The above registers differ depending on an mode to be used. Refer to Section “2.10.4 I2C

bus mode control” and “2.10.6 Clocked-synchronous 8-bit SIO mode control”.

2.10.3

The Data Format in the I

2C Bus Mode

The data format in the I2C bus mode are shown in Figure 2.10.2.

S: Start condition

R/ W : Direction bit

ACK: Acknowledge bit

P: Stop condition

Figure 2.10.2 Data Format in I

2C Bus Mode

1 or more

Data

Slave address

(a) Addressing format

(b) Addressing format (with restart)

Data

8 bits

1 to 8 bits

1 or more

Data

1 to 8 bits

Slave address

Data

8 bits

1 to 8 bits

8 bits

1 to 8 bits

2007-10-19

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