TC1322EOA(2002) データシートの表示（PDF） - Microchip Technology

部品番号

コンポーネント説明

メーカー

TC1322EOA
(Rev.:2002)

12-Bit Digital-to-Analog Converter with Two-Wire Interface

Microchip Technology 

TC1322

FIGURE 3-1:

SMBus PROTOCOLS

Write 1-Byte Format

S

Address

7-Bits

Slave Address

Write 2-Byte Format

R/W ACK Command

0

8-Bits

ACK Data ACK P

8-Bits

Command Byte: selects

which register you are

writing to.

Data Byte: data goes

into the register set

by the command byte.

S

Address

R/W ACK Command

ACK Data ACK Data ACK P

7-Bits

0

8-Bits

8-Bits

8-Bits

Slave Address

Command Byte: selects

which register you are

writing to.

Data Byte: data goes

into the register set

by the command byte.

Read 1-Byte Format

S Address R/W ACK Command ACK S Address R/W ACK Data NACK P

7-Bits 0

8-Bits

7-Bits 1

8-Bits

Slave Address

Command Byte: selects Slave Address: repeated Data Byte: reads from

which register you are due to change in data the register set by the

reading from.

flow direction.

command byte.

Read 2-Byte Format

S Address R/W ACK Command ACK S Address R/W ACK Data ACK Data NACK P

7-Bits 0

8-Bits

7-Bits 1

8-Bits

8-Bits

Slave Address

Command Byte: selects Slave Address: repeated Data Byte: reads from

which register you are due to change in data the register set by the

reading from.

flow direction.

command byte.

Receive 1-Byte Format

S Address R/W ACK Data NACK P

7-Bits 1

8-Bits

S = START Condition

Data Byte: reads data from

P = STOP Condition

the register commanded by

Shaded = Slave Transmission the last read byte or write

byte transmission.

Receive 1-Byte Format

S Address R/W ACK Data ACK Data NACK P

7-Bits 1

8-Bits

8-Bits

S = START Condition

P = STOP Condition

Shaded = Slave Transmission

Data Byte: reads data from

the register commanded by

the last read byte or write

byte transmission.

© 2002 Microchip Technology Inc.

DS21388B-page 7

Share Link: