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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CS47L35 датащи(PDF) 208 Page - Cirrus Logic |
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CS47L35 датащи(HTML) 208 Page - Cirrus Logic |
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208 / 300 page  208 DS1085F3 CS47L35 4.17 Control Interface Data transfers on CIF2 must use the applicable I2C message format, according to the register address space that is being accessed: • When accessing register addresses below R12288 (0x3000), the applicable I2C protocol comprises a 32-bit register address and 16-bit data words. • When accessing register addresses from R12888 (0x3000) upwards, the applicable I2C protocol comprises a 32-bit register address and 32-bit data words. • Note that, in all cases, the complete I2C message protocol also includes a device ID, a read/write bit, and other signaling bits (see Fig. 4-68 and Fig. 4-69). The CS47L35 supports the following read and write operations: • Single write • Single read • Multiple write • Multiple read Continuous (multiple) read and write modes allow register operations to be scheduled faster than is possible with single register operations. In these modes, the CS47L35 automatically increments the register address after each data word. Successive data words can be input/output every 2 (or 4) data bytes, depending on the applicable register address space. The I2C protocol for a single, 16-bit register write operation is shown in Fig. 4-68. Figure 4-68. Control Interface I2C Register Write (16-Bit Data Words) The I2C protocol for a single, 16-bit register read operation is shown in Fig. 4-69. Figure 4-69. Control Interface I2C Register Read (16-Bit Data Words) A25 D7 D1 A31 SDA SCLK device ID register address A15–A8 A24 A15 A8 Note: The SDA pin is used as input for the control register address and data; SDA is pulled low by the receiving device to provide the acknowledge(ACK ) response R/W A9 A7 register address A31–A24 register address A7–A0 START (Write) ACK ACK ACK A17 A23 A16 register address A23–A16 ACK data bits B15–B8 B15 B8 B1 B0 B9 B7 data bits B7–B0 ACK ACK A1 A0 ACK STOP A25 D7 D1 A31 SDA SCLK device ID A24 Note: The SDA pin is driven by both the master and slave devices in turn to transfer device address, register address, data and ACK responses R/W register address A31–A24 START (Write) ACK A17 A23 A16 register address A23–A16 device ID D7 B9 B8 D1 B15 data bits B15–B8 ACK ACK R/W (Read) B1 B0 B7 data bits B7–B0 ACK STOP ACK Rpt START A1 A0 register address A7–A0 register address A15–A8 A15 A8 A9 A7 ACK ACK |
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