TMP006

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SBOS518

– MAY 2011

CONFIGURATION REGISTER

Table 8 describes the Configuration Register. This register determines the operational modes, conversion rate,

DRDY control, initiates a single conversion, performs a software reset, or puts the device into shutdown mode.

This register is read/write, and the pointer address is 02h.

Table 8. Configuration Register (Read/Write)

POINTER

REGISTER

D15

D14

D13

D12

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

(HEX)

Configuration

RST

MOD2

MOD1

MOD0

CR2

CR1

CR0

EN

DRDY

0

0

0

0

0

0

0

02h

Reset value

0

1

1

1

0

1

0

0

0

0

0

0

0

0

0

0

Bit [15]

RST: Software reset bit

0 = Normal operation, this bit self clears

1 = Software reset

Bits [14:12]

MOD[2:0]: Mode of operation

000 = Power-down

111 = Sensor and ambient continuous conversion (MOD)

Bits [11:9]

CR[2:0]: ADC conversion rate

See Table 9.

Bit [8]

EN: DRDY enable bit

0 = DRDY pin disabled

1 = DRDY pin enabled

Bit [7]

DRDY: Data ready bit

0 = Conversion in progress

1 = Object voltage and ambient temperature results are ready to read. A temperature or sensor voltage read or a write to

the Configuration Register is required to clear the condition.

Bits [6:0]

Unused [6:0]

The TMP006 can operate in two modes: continuous and shutdown. A software reset function is also available.

Selecting the desired operating mode is done by writing to the Configuration Register conversion mode select

bits MOD[2:0]. The duration of the analog-to-digital (A/D) conversion is determined by the conversion rate bits

CR[2:0] and is listed in Table 9. Continuous mode, on the other hand, performs an A/D conversion followed by a

low-power delay in order to reduce the average power consumption. Multiple options for the conversion time and

delay time are available in order to select the desired power/noise performance. Initiating power-down has an

immediate effect; it aborts the current conversion and puts the device into a low-power shutdown mode. RST, or

software reset, is also immediate and initializes all memory locations with the respective reset values.

Table 9. Conversion Rate

TOTAL NUMBER OF

PEAK-PEAK NOISE

CONVERSION RATE

CR2

CR1

CR0

AVERAGED

(conv/sec)

SAMPLES

RESULT (

°C)

0

0

0

4

1

240

0.5

0

0

1

2

2

240

0.35

0

1

0

1

4

240

0.25 (default)

0

1

1

0.5

8

240

0.18

1

0

0

0.25

16

240

0.125

Copyright

© 2011, Texas Instruments Incorporated

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