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TPIC83000IPWRQ1 Scheda tecnica(PDF) 13 Page - Texas Instruments

Il numero della parte TPIC83000IPWRQ1
Spiegazioni elettronici  PRESSURE SENSOR SIGNAL CONDITIONING INTERFACE
PDF  44 Pages
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
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TPIC83000IPWRQ1 Scheda tecnica(HTML) 13 Page - Texas Instruments

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TPIC83000-Q1
www.ti.com
SLDS171 – NOVEMBER 2009
7
6
5
4
3
2
1
0
PSNID(1)
PSNID(0)
WORDID
OUTDATA(9)
OUTDATA(8)
OUTDATA(7)
OUTDATA(6)
OUTDATA(5)
ACOVLD
ACOVIN
WORDID
OUTDATA(4)
OUTDATA(3)
OUTDATA(2)
OUTDATA(1)
OUTDATA(0)
First Frame
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.
OUTDATA(9:5)
Bits 4-0
Top five MSB of pressure data
In sensor mode, data is processed with 10-bit resolution. The data is sent on the UART bus in 5-bit
increments until all data is transmitted. For example, if the data is 0100100011, the first five bits sent are
01001 and the second five bits sent are 00011.
Second Frame
ACOVLD
Bit 7
Detection of over-pressure condition and CRC or input voltage error
0
No error detected
1
Error detected
ACOVIN
Bit 6
Detection of CRC or input voltage error across SIP and SIN pins
0
No error detected
1
Error detected
WORDID
Bit 5
Frame ID of command byte. Sensor mode has only one command frame. Therefore, for sensor mode,
always = 0.
OUTDATA(4:0)
Bits 4-0
Bottom five bits of pressure data
Figure 6. Sensor Mode Data Frame Description
Table 5. Sensor Mode Command Frame Profile (RX)
DATA NAME
FRAME NO.
B7 (MSB)
B6
B5
B4
B3
B2
B1
B0 (LSB)
TX request
1
PSNID(1)
PSNID(0)
WORD ID
ACOVLD
ACOVIN
DISPSN
ACTMODE
ACSUNT
Table 6. Sensor Mode Data Frame Profile (TX)
DATA NAME
FRAME NO.
B7 (MSB)
B6
B5
B4
B3
B2
B1
B0 (LSB)
1
PSNID(1)
PSNID(0)
ACTMODE
OUTDATA(9)
OUTDATA(8)
OUTDATA(7)
OUTDATA(6)
OUTDATA(5)
Sensor OUT+ DIAG
2
DIAG(1)
DIAG(0)
ACSUNT
OUTDATA(4)
OUTDATA(3)
OUTDATA(2)
OUTDATA(1)
OUTDATA(0)
Copyright © 2009, Texas Instruments Incorporated
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