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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M38045FFHKP датащи(PDF) 211 Page - Renesas Technology Corp |
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M38045FFHKP датащи(HTML) 211 Page - Renesas Technology Corp |
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211 / 387 page  2-87 APPLICATION 2.5 Multi-master I2C-BUS interface Rev.1.00 Jan 14, 2005 REJ09B0212-0100Z 3804 Group (Spec.H) Fig. 2.5.5 Structure of I2C status register I2C status register b7 b6 b5 b4 b3 b2 b1 b0 I2C status register (S1: address 001316) 0: Last bit = 0 1: Last bit = 1 (Note 1) b 0 1 2 3 4 7 Name Functions At reset R W 0: No general call detected 1: General call detected (Notes 1, 2) 0: Address disagreement 1: Address agreement (Notes 1, 2) 0 1 0 0 0 Undefined Last receive bit (LRB) General call detection flag (AD0) SCL pin low hold bit (PIN) Arbitration lost detection flag (AL) Slave address comparison flag (AAS) Bus busy flag (BB) Communication mode specification bits (TRX, MST) 0 0 5 6 0: SCL pin low hold (Note 3) 1: SCL pin low release 0: Bus free 1: Bus busy b7 b6 0 0: Slave receive mode 0 1: Slave transmit mode 1 0: Master receive mode 1 1: Master transmit mode Notes 1: These flags and bits are exclusive to input. When writing to these bits, write 0 to these bits. 2: These bits can be detected only when the data format selection bit (ALS) of I2C control register is set to 0 . 3: This bit can be set to 1 by program, but cannot be cleared to 0 . 4: All bits are changed by hardware. Do not use the read- modify-write instructions (SEB, CLB). 0: Not detected 1: Detected (Note 1) |
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