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TMP006AIYZFR Folha de dados(PDF) 11 Page - Texas Instruments |
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TMP006AIYZFR Folha de dados(HTML) 11 Page - Texas Instruments |
11 / 21 page TMP006 TMP006B www.ti.com SBOS518C – MAY 2011 – REVISED DECEMBER 2012 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 and TMP006B 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 and 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 © 2011–2012, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: TMP006 TMP006B |
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