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AMC7836IPAPRG4 数据表(PDF) 59 Page - Texas Instruments |
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AMC7836IPAPRG4 数据表(HTML) 59 Page - Texas Instruments |
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59 / 91 page ![]() 59 AMC7836 www.ti.com SLAS986D – NOVEMBER 2014 – REVISED FEBRUARY 2018 Product Folder Links: AMC7836 Submit Documentation Feedback Copyright © 2014–2018, Texas Instruments Incorporated 7.6.5.4 ALARMOUT Source 1 Register (address = 0x1D) [reset = 0x00] Figure 86. ALARMOUT Source 1 Register (R/W) 7 6 5 4 3 2 1 0 Reserved ALARM- LATCH-DIS ALRIN-ALR- OUT THERM-ALR- OUT LT-HIGH-ALR- OUT LT-LOW-ALR- OUT R/W-All zeros R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 Table 33. ALARMOUT Source 1 Register Field Descriptions Bit Field Type Reset Description 7-5 Reserved R/W All zeros Reserved for factory use 4 ALARM-LATCH-DIS R/W 0 Alarm latch disable bit. When cleared to 0 the alarm bits are latched. When an alarm occurs, the corresponding alarm bit is set to “1”. The alarm bit remains until the error condition subsides and the alarm register is read. Before reading, the alarm bit is not cleared even if the alarm condition disappears. When set to 1 the alarm bits are not latched. When the alarm condition subsides, the alarm bits are cleared regardless of whether the alarm bits have been read or not. 3 ALRIN-ALR-OUT R/W 0 This register selects which alarms can activate the ALARMOUT pin. The ALARMOUT must be enabled for this function to take effect. 2 THERM-ALR-OUT R/W 0 1 LT-HIGH-ALR-OUT R/W 0 0 LT-LOW-ALR-OUT R/W 0 7.6.6 DAC Range: Address 0x1E 7.6.6.1 DAC Range Register (address = 0x1E) [reset = 0x00] Figure 87. DAC Range Register (R/W) 7 6 5 4 3 2 1 0 Reserved DAC-RANGEB[2:0] Reserved DAC-RANGEA[2:0] R/W-0 R/W-All zeros R/W-0 R/W-All zeros Table 34. DAC Range Register Field Descriptions Bit Field Type Reset Description 7 Reserved R/W 0 Reserved for factory use 6-4 DAC-RANGEB[2:0] R/W All zeros DAC group B output voltage selection. Overrides output range set by the auto-range detection circuit. See Table 35 to configure this setting. 3 Reserved R/W 0 Reserved for factory use 2 DAC-RANGEA[2:0] R/W All zeros DAC group A output voltage selection. Overrides output range set by the auto-range detection circuit. See Table 35 to configure this setting. Table 35. DAC-RANGEx Bit Configuration DAC-RANGEx[2:0] DAC Group x Output Voltage Range 0xx Range set by auto-range detection circuit 100 –10 to 0 V 101 -5 to 0 V 110 0 to 10 V 111 0 to 5 V |
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