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SI1133 数据表(PDF) 11 Page - Silicon Laboratories |
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SI1133 数据表(HTML) 11 Page - Silicon Laboratories |
11 / 43 page 5. User to Sensor Communication 5.1 Basic I2C Operation I2C operation is dependent on serial I2C reads and writes to an addressable bank of memory referred to as I2C space. The diagram below outlines the registers used, some functionality and the direction of data flow. The I2C address is initially fixed but can be program- med to a new value. This new value is volatile and reverts to the old value on hardware or software reset. Only 7-bit I2C addressing is supported; 10-bit I2C addressing is not supported. The Si1133 responds to the I2C address of 0x55 or to an alternate address of 0x52. SDA SCL SDA Engine PART ID MFR ID REV ID MCU INPUT3 -> 0 COMMAND RESPONSE_1 OUTPUT0 to 25 AND OR INT 6 6 6 IRQ_EN IRQ_STATUS RESPONSE_0 Bit7: RUNNING INFO_0 & 1 (SPARES) CR Sequencial Write Group Sequencial Read Group Part and Version ID Group COMMAND_WR_INT Interrupt Logic OD Bit6: SUSPEND SFR SPACE 5 I2C SPACE Bit5: SLEEP Figure 5.1. I2C Interface Block Diagram Si1133 Data Sheet User to Sensor Communication silabs.com | Smart. Connected. Energy-friendly. Rev. 0.91 | 10 |
类似零件编号 - SI1133 |
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类似说明 - SI1133 |
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