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BH1900NUX Datasheet(PDF) 8 Page - Rohm |
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BH1900NUX Datasheet(HTML) 8 Page - Rohm |
8 / 22 page 8/18 BH1900NUX TSZ02201-0M2M0F516010-1-2 © 2016 ROHM Co., Ltd. All rights reserved. 26.Apr.2016 Rev.001 www.rohm.com TSZ22111 • 15 • 001 Two-wire Serial Communication 1. Write format (1) Writing 1Byte data S Slave Address W 0 ACK Register Address ACK Byte 1 Data ACK P (2) Writing 2Byte data S Slave Address W 0 ACK Register Address ACK Byte 1 Data ACK Byte 2 Data ACK P 2. Read format (1) Reading 2Byte data after setting register address S Slave Address W 0 ACK Register Address ACK S Slave Address R 1 ACK Byte 1 Data ACK Byte 2 Data NACK P (2) Reading data of the addressed register S Slave Address R 1 ACK Byte 1 Data ACK Byte 2 Data NACK P from master to slave from slave to master 4. Slave Address The slave address is selectable from 8 addresses by A0, A1, A2 pins. A2 A1 A0 Slave Address L L L 1001000 L L H 1001001 L H L 1001010 L H H 1001011 H L L 1001100 H L H 1001101 H H L 1001110 H H H 1001111 |
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