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MCP9804-E/MS датащи(PDF) 27 Page - Microchip Technology |
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MCP9804-E/MS датащи(HTML) 27 Page - Microchip Technology |
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27 / 54 page ![]() © 2009 Microchip Technology Inc. DS22203A-page 27 MCP9804 5.1.4 MANUFACTURER ID REGISTER This register is used to identify the manufacturer of the device in order to perform manufacturer specific operation. The Manufacturer ID for the MCP9804 is 0x0054 (hexadecimal). FIGURE 5-7: Timing Diagram for Reading the Manufacturer ID Register (See Section 4.0). REGISTER 5-5: MANUFACTURER ID REGISTER (READ-ONLY) → ADDRESS ‘0000 0110’b R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 Manufacturer ID bit 15 bit 8 R-0 R-1 R-0 R-1 R-0 R-1 R-0 R-0 Manufacturer ID bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 15-0 Device Manufacturer Identification Bits . SDA A C K 00 1 1 A Manuf. ID Pointer 00 0 0 A C K S 2 A 1 A 0 12 3 4 5 6 7 8 1 2 3 4 5 678 SCL 0 Address Byte A C K 00 1 1 A MSB Data A C K N A K S P 2 A 1 A 0 12 3 4 5 6 7 8 1 2 345 6 7 8 1 2 3 4 567 8 Address Byte LSB Data R MCP9804 MCP9804 MCP9804 Master Master W SDA SCL 11 0 00 0 0 0 00 0 0 1 0 1 0 10 0 Note: It is not necessary to select the register pointer if it was set from the previous read/write. |
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