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DA9130 Datasheet(PDF) 25 Page - Renesas Technology Corp |
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DA9130 Datasheet(HTML) 25 Page - Renesas Technology Corp |
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25 / 46 page ![]() DA9130 High-Performance, 10 A, Dual-Phase DC-DC Converter for Mobile and Portable Applications Datasheet Revision 2.1 14-Apr-2022 CFR0011-120-00 25 of 45 © 2022 Renesas Electronics SLAVEadr W REGadr A DATA A P S = START condition A = Acknowledge (low) P = STOP condition W = Write (low) Master to Slave Slave to Master 7-bits 1-bit 8-bits 8-bits A S Figure 12: I2C Byte Write (SDA Line) When the host reads data from a register it first has to write to DA9130 with the target register address and then read from DA9130 with a repeated START, or alternatively a second START, condition. After receiving the data, the host sends no acknowledge (A*) and terminates the transmission with a STOP condition, see Figure 13. S SLAVEadr W A REGadr A SLAVEadr A S = START condition A = Acknowledge (low) Sr = Repeated START condition A * = No Acknowledge P = STOP condition W = Write (low) R = Read (high) Master to Slave 7-bits 1-bit 8-bits 7-bits DATA A * Sr R 1-bit 8-bits SLAVEadr A 7-bits DATA P S R 1-bit 8-bits P A * Slave to Master S SLAVEadr W A REGadr P 7-bits 1-bit 8-bits A Figure 13: I2C Byte Read (SDA Line) Examples |
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