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TPIC83000IPWRQ1 Datasheet(PDF) 12 Page - Texas Instruments

Part # TPIC83000IPWRQ1
Description  PRESSURE SENSOR SIGNAL CONDITIONING INTERFACE
PDF  44 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPIC83000IPWRQ1 Datasheet(HTML) 12 Page - Texas Instruments

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TPIC83000-Q1
SLDS171 – NOVEMBER 2009
www.ti.com
Sensor Mode
In the Sensor Mode, the microprocessor sends a command frame to the TPIC83000 in Sensor mode and the
TPIC83000 responds with a data frame. Note that in sensor mode, the data frame immediately follows the
command frame. The following section explains the command and data frames in detail along with the meaning
and action of each bit in these frames.
7
6
5
4
3
2
1
0
PSNID(1)
PSNID(0)
WORDID
ACOVLD
ACOVIN
DISPSN
ACTMODE
ACSUNT
PSNID[1:0]
Bits 7-6
Position ID of device on UART bus. Each device process information for one sensor. Four sensors can be
sensed on the UART bus. Position settings are defined in the EEPROM map.
00
Position 0
01
Position 1
10
Position 2
11
Position 3
WORDID
Bit 5
Frame ID of command byte. Sensor mode has only one command frame. Therefore, for sensor mode, always
= 0.
ACOVLD
Bit 4
Acknowledge bit for DIAG1
0
Do not reset DIAG1
1
Reset DIAG1
ACOVIN
Bit 3
Acknowledge bit for DIAG0
0
Do not reset DIAG0
1
Reset DIAG0
DISPSN
Bit 2
Enable or disable position ID match
Recognizes device-specific commands vs global command. Compares position ID of command frame with
EEPROM position ID (in device). The command frame position ID is specified in bits 7 and 6 of each frame.
The EEPROM position ID is stored inthe PSNID field in the EEPROM map.
0
Decode command frame only if position IDs match
1
Indicates global command. All devices decode command frame.
ACTMODE
Bit 1
Sets device to sensor or calibration mode after current command is completed.
0
Sensor mode
1
Calibration mode
ACSUNT
Bit 0
Sets device to field addressing mode or bank addressing mode. Can be accessed only in calibration mode.
0
Bank addressing mode
1
Field addressing mode
Figure 5. Sensor Mode Command Frame Description
12
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Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): TPIC83000-Q1



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