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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LP3906 датащи(PDF) 25 Page - Texas Instruments |
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LP3906 датащи(HTML) 25 Page - Texas Instruments |
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25 / 47 page  ack from slave w ack start msb Chip Address lsb msb Register Add lsb msb DATA lsb ack ack stop ack from slave ack from slave SCL start id = K¶60 w ack register addr = K¶10 GDWD DGGU K¶6A ack ack stop SDA rs msb Chip Address lsb r ack repeated start data from slave ack from master r id = K¶60 ack rs . SCL SDA start id = K¶60 w ack addr = K¶02 DGGUHVV K¶$$ GDWD ack ack stop ack from slave w ack start msb Chip Address lsb msb Register Add lsb msb DATA lsb ack ack stop ack from slave ack from slave 1 2 3 4 5 6 7 8 9 1 2 3 ... LP3906 www.ti.com SNVS456M – AUGUST 2006 – REVISED MAY 2013 w = write (SDA = “0”) r = read (SDA = “1”) ack = acknowledge (SDA pulled down by either master or slave) rs = repeated start id = LP3906 chip address : 0x60 Figure 37. I2C Write Cycle When a READ function is to be accomplished, a WRITE function must precede the READ function, as shown in the Read Cycle waveform. Figure 38. I2C Read Cycle LP3906 Control Registers Register Address Register Name Read/Write Register Description 0x02 ICRA R Interrupt Status Register A 0x07 SCR1 R/W System Control 1 Register 0x10 BKLDOEN R/W Buck and LDO Output Voltage Enable Register 0x11 BKLDOSR R Buck and LDO Output Voltage Status Register 0x20 VCCR R/W Voltage Change Control Register 1 0x23 B1TV1 R/W Buck 1 Target Voltage 1 Register 0x24 B1TV2 R/W Buck 1 Target Voltage 2 Register 0x25 B1RC R/W Buck 1 Ramp Control 0x29 B2TV1 R/W Buck 2 Target Voltage 1 Register 0x2A B2TV2 R/W Buck 2 Target Voltage 2 Register 0x2B B2RC R/W Buck 2 Ramp Control 0x38 BFCR R/W Buck Function Register 0x39 LDO1VCR R/W LDO1 Voltage control Registers 0x3A LDO2VCR R/W LDO2 Voltage control Registers Copyright © 2006–2013, Texas Instruments Incorporated Submit Documentation Feedback 25 Product Folder Links: LP3906 |
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