Datasheet

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SBOS231G − JANUARY 2002 − REVISED NOVEMBER 2007
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12
Frame1I
2
C Slave Address Byte Frame 2 Pointer Register Byte
1
Start By
Master
ACK By
TMP100 or TMP101
ACK By
TMP100 or TMP101
Frame3I
2
C Slave Address Byte Frame 4 Data Byte 1 Read Register
Start By
Master
ACK By
TMP100 or TMP101
ACK By
Master
From
TMP100 or TMP101
191 9
191 9
SDA
SCL
001A2A1A0R/W 000000P1P0
…
…
…
…
SDA
(Continued)
SCL
(Continued)
SDA
(Continued)
SCL
(Continued)
1 0 0 1 A2 A1 A0 R/W
D7 D6 D5 D4 D3 D2 D1 D0
Frame5DataByte2ReadRegister
Stop By
Master
ACK By
Master
From
TMP100 or TMP101
19
D7 D6 D5 D4 D3 D2 D1 D0
Figure 7. I
2
C Timing Diagram for Read Word Format
Frame 1 SMBus ALERT Response Address Byte Frame 2 Slave Address From TMP100
Start By
Master
ACK By
TMP100 or TMP101
From
TMP100 or TMP101
NACK By
Master
Stop By
Master
191 9
SDA
SCL
ALERT
0001100R/W 1001A2A1A0
Status
Figure 8. Timing Diagram for SMBus ALERT