THMC50_08 Datasheet, PDF(9/34 Page) Texas Instruments – REMOTE/LOCAL TEMPERATURE MONITOR AND FAN CONTROLLER WITH SMBus INTERFACE

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THMC50_08 Datasheet, PDF (9/34 Pages) Texas Instruments – REMOTE/LOCAL TEMPERATURE MONITOR AND FAN CONTROLLER WITH SMBus INTERFACE

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THMC50

REMOTE/LOCAL TEMPERATURE MONITOR AND

FAN CONTROLLER WITH SMBus INTERFACE

SLIS090 â JULY 1999

PARAMETER MEASUREMENT INFORMATION

SMBus timing diagrams (continued)

SCLK

SDATA

Start By

Master

SCLK

(Continued)

A5 A4 A3 A2 A1 A0 R/W

Frame 1 SMBus Slave Address Byte

ACK By

THMC50

D6 D5 D4 D3 D2 D1 D0

ACK By

Master

Frame 2 Address Pointer Register Byte

SDATA

(Continued)

Start By

Master

A5 A4 A3 A2 A1 A0 R/W

D7 D6 D5 D4 D3 D2 D1 D0

Frame 3 SMBus Slave Address Byte

ACK By

THMC50

NACK By Stop By

THMC50 Master

Frame 4 Data Byte Read From THMC50

Figure 3. SMBus Timing Diagram for Read Byte Format

SCLK

SDATA

Start By

Master

A5 A4 A3 A2 A1 A0 R/W

D7 D6 D5 D4 D3 D2 D1 D0

Frame 1 SMBus Slave Address Byte

ACK By

THMC50

ACK By

THMC50

Frame 2 Address Pointer Register Byte

Figure 4. SMBus Timing Diagram for Send Byte Format

Stop By

Master

SCLK

SDATA

Start By

Master

A5 A4 A3 A2 A1 A0 R/W

D7 D6 D5 D4 D3 D2 D1 D0

Frame 1 SMBus Slave Address Byte

ACK By

THMC50

NACK Stop By

By Master Master

Frame 2 Data Byte From THMC50

Figure 5. SMBus Timing Diagram for Recieve Byte Format

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