TPIC83000IPWRQ1 datasheet(24/44 Pages) TI

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TPIC83000-Q1

SLDS171 – NOVEMBER 2009

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Calibration Mode – Calibration Read

Calibration Read Command Frames

PSNID(1)

PSNID(0)

WORDID

MODETYPE

DISPSN

Reserved

PSNID(1)

PSNID(0)

WORDID

ADDR4

ADDR3

ADDR2

ADDR1

ADDR0

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.

Position 0

Position 1

Position 2

Position 3

WORDID

Bit 5

Frame ID of byte. 1 indicates frame 1 of 2.

MODETYPE

Bits 4-3

Select mode type within calibration mode

Data request

Calibration write

Calibration read

Mode select

DISPSN

Bit 2

Disable or enable position ID matching

Decode command only if position IDs match

Indicates global command. All devices decode command frame.

Reserved

Bits 1-0

Must be set to 0.

Second 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.

Position 0

Position 1

Position 2

Position 3

WORDID

Bit 5

Frame ID of byte. 0 indicates frame 2 of 2.

ADDR[4:0]

Bits 4-0

Address for bank or field mode addressing. See Table 3 for list of valid addresses.

Figure 11. Calibration Read Command Frames

Table 16. Data Format Actual Values for Data Request Mode

DATA

ITEM

SYMBOL

NOTE/CONDITION

BINARY VALUE

DECIMAL VALUE

LENGTH

Input = -2.275 mV, 0 mV, 4.095 mV

11 1111 1111

1023

Pressure data

OUTDATA

01 0110 1101

365

Gain = nominal

00 0000 0000

Input = -2.275 mV, 0 mV, 4.095 mV

00 1111 1011 1010

4026

Pressure ADC data

ADCDAT

Gain = nominal

00 0000 0000 0000

Twos compliment

11 0111 0100 0100

-2236

TA = 85°C

01 1000 1100

396

Temperature data

OUTTEMP

TA = 25°C

00 0000 0000

TA = -40°C

10 0101 0011

-429

TA = 85°C

0110 0011 0001

1585

Temperature ADC data

ADCTMP

TA = 25°C

0000 0000 0000

TA = -40°C

1001 0100 1011

-1717

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