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RT5016C Datasheet(PDF) 47 Page - Richtek Technology Corporation |
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RT5016C Datasheet(HTML) 47 Page - Richtek Technology Corporation |
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47 / 68 page  RT5016C 47 DS5016C-02 November 2016 www.richtek.com Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. © Type I : 10-bit slave address data format In 10-bit addressing, the slave address is sent in the first two bytes. The first byte begins with the special reserved address of 11110XX which indicates that 10-bit addressing is being used. Type II : 2-byte register address data format The register address is combined with 2-byte as below. When the RT5016C and other I 2C devices with 10-bit slave addressing (type I) or two-byte register addressing (type II) coexist in one I 2C bus, the RT5016C needs one dummy I2C write frame to reset the RT5016C internal I2C operation state. The below shows a dummy write frame example, that is to write the RT5016C register A10 [7:0] = 00000000. Master should ignore the write operation (This operation is invalid). After the dummy frame, the master can read/write formal I 2C frame for the RT5016C to get right operation. S 0 A Slave Address Register Address Slave Address Sr A A 1 MSB A A Data 1 LSB 2-Byte Register Address S x x R/W 1 1 1 1 0 x xACK Bit 0 ACK Bit 7 Bit 8 Bit 9 x x x x Bit 0 LSB Bit 9 MSB 10-Bit Address x x x x x x x x x x x x MSB LSB S A P Read 2 bytes Type I/Type II data. S A P S A P Read RT5016C data. S A P S P S P Write RT5016C data. Write 2 bytes Type I/Type II data. A S A P Write 2 bytes Type I/Type II data. S A P S A P Read RT5016C data. S A P S P Write RT5016C register A10[7:0] = 00000000 data. S P Write RT5016C data. Read 2 bytes Type I/Type II data. A Dummy I 2C write frame. Normal I 2C read/write frame A A Write RT5016C register A10[7:0] = 00000000 data. Write RT5016C register A10[7:0] = 00000000 data. Write RT5016C register A10[7:0] = 00000000 data. |
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