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数据搜索系统，热门电子元器件搜索 |
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MCP4641-104E/MS 数据表(PDF) 53 Page - Microchip Technology |
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MCP4641-104E/MS 数据表(HTML) 53 Page - Microchip Technology |
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53 / 92 page  © 2008 Microchip Technology Inc. DS22107A-page 53 MCP454X/456X/464X/466X FIGURE 6-11: General Call Formats. 0 00 0 S 0 000 X XXXX A XX0AP General Call Address Second Byte “7-bit Command” Reserved 7-bit Commands (By I2C Specification - Philips # 9398 393 40011, Ver. 2.1 January 2000) ‘0000 011’ b - Reset and write programmable part of slave address by hardware. ‘0000 010’ b - Write programmable part of slave address by hardware. ‘0000 000’ b - NOT Allowed MCP45XX/MCP46XX 7-bit Commands ‘1000 01x’ b - Increment Wiper 0 Register. ‘1001 01x’ b - Increment Wiper 1 Register. The Following is a Microchip Extension to this General Call Format 0 000 S 0000 X XX XX AX d 0 A General Call Address Second Byte “7-bit Command” MCP45XX/MCP46XX 7-bit Commands ‘1000 00d’ b - Write Next Byte (Third Byte) to Volatile Wiper 0 Register. ‘1001 00d’ b - Write Next Byte (Third Byte) to Volatile Wiper 1 Register. d dddd ddd A P Third Byte The Following is a “Hardware General Call” Format 0 00 0 S 000 0 X XXXX AX X 1 A General Call Address Second Byte “7-bit Command” X XXXX XXX AP n occurrences of (Data + A) This indicates a “Hardware General Call” MCP45XX/MCP46XX will ignore this byte and all following bytes (and A), until ‘1000 10x’b - Decrement Wiper 0 Register. ‘1001 10x’ b - Decrement Wiper 1 Register. ‘1100 00d’ b - Write Next Byte (Third Byte) to TCON Register. a Stop bit (P) is encountered. “0” for General Call Command |
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