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LED171596ARSLR датащи(PDF) 25 Page - Texas Instruments |
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LED171596ARSLR датащи(HTML) 25 Page - Texas Instruments |
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25 / 153 page ![]() 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A8 W A7 A6 A5 A4 A3 A2 A1 A0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 6-bit SLAVE ID 10-bit DATA1 Register ADDRESS MSB bit SCL SDA ID5 ID4 ID3 ID2 ID1 ID0 A WRITE bit A 9 9 8-bit ADDRESS LSBs A A 17 18 19 D0 10-bit DATA2 A 35 36 10 1 2 3 4 5 6 7 8 A8 R 6-bit SLAVE ID Register ADDRESS MSB bit ID5 ID4 ID3 ID2 ID1 ID0 READ bit A 9 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A8 W A7 A6 A5 A4 A3 A2 A1 A0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 6-bit SLAVE ID 10-bit DATA1 Register ADDRESS MSB bit SCL SDA ID5 ID4 ID3 ID2 ID1 ID0 A WRITE bit A 9 9 8-bit ADDRESS LSBs A A 17 18 19 D0 10-bit DATA2 A 35 36 SCL SDA HOST SCK_SCL MOSI_SDA IFSEL_LATCH MISO_ADDR Device #1 SCK_SCL MOSI_SDA IFSEL_LATCH Device #2 SCK_SCL MOSI_SDA IFSEL_LATCH Device #3 VDDIO VDDIO VDDIO MISO_ADDR MISO_ADDR Slave Address 010100 Slave Address 010101 Slave Address 010110 Copyright © 2016, Texas Instruments Incorporated VDDIO 25 LED171596A www.ti.com SNVSAY2 – OCTOBER 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated This results in three unique slave IDs of 14h (010100), 15h(010101) and 16h (010110). The common slave ID that all devices accept, regardless of MISO_ADDR pin state, is 17h (010111). The common slave ID allows writing the same data to all devices simultaneously, but must not be use for reading. Figure 23 shows how three LED171596A devices can be addressed with the same I2C interface. Figure 23. I2C Addresses Using Three LED171596A Devices Table 6. I2C ADDRESS Detail Description UPPER 4 BITS OF SLAVE ID SLAVE ID BITS FROM ADDR PIN 9-BIT REG ADDR MSB R/W 8-BIT ADDRESS 0 1 0 1 0 0 0 0 50h 0 1 0 1 0 0 0 1 51h 0 1 0 1 0 0 1 0 52h 0 1 0 1 0 0 1 1 53h 0 1 0 1 0 1 0 0 54h 0 1 0 1 0 1 0 1 55h 0 1 0 1 0 1 1 0 56h 0 1 0 1 0 1 1 1 57h 0 1 0 1 1 0 0 0 58h 0 1 0 1 1 0 0 1 59h 0 1 0 1 1 0 1 0 5Ah 0 1 0 1 1 0 1 1 5Bh 0 1 0 1 1 1 0 0 5Ch 0 1 0 1 1 1 1 0 5Eh Common Slave ID Bits Figure 24. I2C Write Figure 25. I2C Read |
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