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TMP139AIYAHT Datasheet(PDF) 21 Page - Texas Instruments

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Part # TMP139AIYAHT
Description  TMP139 0.5 째C Accuracy, JEDEC DDR5 Grade B, Digital Temperature Sensor With I2C and I3C Interface
PDF  58 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMP139AIYAHT Datasheet(HTML) 21 Page - Texas Instruments

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When IBI is enabled, the device can communicate to the host the error conditions seen, using IBI. However
when IBI is not enabled, it is strongly recommended that the host check the error status register to ensure that
no parity or PEC error was detected on the bus.
7.4.4.5 Host I3C Read Operation in Default Read Address Pointer Mode
The default read address pointer mode in I3C basic mode works the same way as I2C mode as shown in Figure
7-19 to Figure 7-22. The device shall also send the T-bit as 0, if the host attempts to read data continuously such
that the internal read address pointer reaches 255, which is the last register in the register map table. The host
may also terminate the transfer by driving the T-bit as 0 only when PEC is not enabled.
Data(RA)
Data(RA+1)
...
T=1
T=1
T=1
Data(RA+N)
Sr or P
T=1
S or Sr
0
SA
1
0
HID2
HID1
HID0
R/W=1
ACK/NACK
Figure 7-19. I3C Basic Mode Default Read Address Enabled
Data(RA)
Data(RA+1)
...
T=1
T=1
T=1
Data(RA+N)
Sr or P
T=1
Sr
0
SA
1
0
HID2
HID1
HID0
R/W=1
ACK/NACK
S
1
1
1
1
1
1
0
R/W=0
ACK
Figure 7-20. I3C Basic Mode Default Read Address Enabled with IBI Header
When PEC is enabled, then the MR18 register sets the default number of bytes that shall be sent, after which
the device shall send the PEC byte with T-bit as 0.
Data(RA)
...
Data(RA+N)
T=1
T=1
T=1
PEC
Sr or P
T=0
S or Sr
0
SA
1
0
HID2
HID1
HID0
R/W=1
ACK/NACK
Figure 7-21. I3C Basic Mode Default Read Address Enabled with PEC Enabled
Data(RA)
...
Data(RA+N)
T=1
T=1
T=1
PEC
Sr or P
T=0
Sr
0
SA
1
0
HID2
HID1
HID0
R/W=1
ACK/NACK
S
1
1
1
1
1
1
0
R/W=0
ACK
Figure 7-22. I3C Basic Mode Default Read Address Enabled with PEC Enabled and IBI Header
www.ti.com
TMP139
SNIS217 – DECEMBER 2020
Copyright © 2021 Texas Instruments Incorporated
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