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TMP006AIYZFR Scheda tecnica(PDF) 11 Page - Texas Instruments |
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TMP006AIYZFR Scheda tecnica(HTML) 11 Page - Texas Instruments |
11 / 17 page TMP006 www.ti.com 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 AVERAGE IQ (μA) OF THE TObject (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 Submit Documentation Feedback 11 Product Folder Link(s): TMP006 |
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