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INA701 Datasheet(PDF) 24 Page - Texas Instruments |
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INA701 Datasheet(HTML) 24 Page - Texas Instruments |
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24 / 47 page  00001XXX. This transmission is made in fast (400kHz) or standard (100kHz) (F/S) mode at no more than 400kHz. The device does not acknowledge the HS main device code, but does recognize the code and switches internal filters of the device to support 2.94MHz operation. The main device then generates a repeated start condition (a repeated start condition has the same timing as the start condition). After this repeated start condition, the protocol is the same as F/S mode, except that transmission speeds up to 2.94MHz are allowed. Instead of using a stop condition, use repeated start conditions to maintain the bus in HS-mode. A stop condition ends the HS-mode and switches all the internal filters of the device to support the F/S mode. 6.5.1.3 SMBus Alert Response The INA701 is designed to respond to the SMBus Alert Response address. The SMBus Alert Response provides a quick fault identification for simple secondary devices. When an Alert occurs, the main device can broadcast the Alert Response secondary device address (0001 100) with the R/W bit set high. Following this Alert Response, any secondary device that generates an alert can self-identify by acknowledging the Alert Response and sending the device address to the bus. The Alert Response can activate several different target devices simultaneously, similar to the I2C General Call. If more than one target attempts to respond, bus arbitration rules apply. The losing device does not generate an Acknowledge and continues to hold the Alert line low until that device wins arbitration. 6.6 Register Maps 6.6.1 INA701 Registers Table 6-3 lists the INA701 registers. All register locations not listed in Table 6-3 are considered reserved locations and the register contents must not be modified. Table 6-3. INA701 Registers Address Acronym Register Name Register Size (bits) Section 0h CONFIG Configuration 16 Go 1h ADC_CONFIG ADC Configuration 16 Go 5h VBUS Bus Voltage Measurement 16 Go 6h DIETEMP Temperature Measurement 16 Go 7h CURRENT Current Result 16 Go 8h POWER Power Result 24 Go 9h ENERGY Energy Result 40 Go Ah CHARGE Charge Result 40 Go Bh ALERT_DIAG Diagnostic Flags and Alert 16 Go Ch COL Current Over-Limit Threshold 16 Go Dh CUL Current Under-Limit Threshold 16 Go Eh BOVL Bus Overvoltage Threshold 16 Go Fh BUVL Bus Undervoltage Threshold 16 Go 10h TEMP_LIMIT Temperature Over-Limit Threshold 16 Go 11h PWR_LIMIT Power Over-Limit Threshold 16 Go 3Eh MANUFACTURER_ID Manufacturer ID 16 Go Complex bit access types are encoded to fit into small table cells. Table 6-4 shows the codes that are used for access types in this section. Table 6-4. INA701 Access Type Codes Access Type Code Description Read Type INA701 SBOSAM2 – AUGUST 2025 www.ti.com 24 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated Product Folder Links: INA701 |
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