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LTM4686BEVPBF 数据表(PDF) 79 Page - Analog Devices |
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LTM4686BEVPBF 数据表(HTML) 79 Page - Analog Devices |
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79 / 130 page ![]() LTM4686B 79 Rev. 0 For more information www.analog.com APPENDIX B Figure 38. PMBus Packet Protocol Diagram Element Key Figure 39. Quick Command Protocol Figure 40. Send Byte Protocol Figure 41. Send Byte Protocol with PEC Figure 42. Write Byte Protocol Figure 43. Write Byte Protocol with PEC SLAVE ADDRESS DATA BYTE Wr A A P 4686B F38 S 7 S START CONDITION Sr REPEATED START CONDITION Rd READ (BIT VALUE OF 1) Wr WRITE (BIT VALUE OF 0) x SHOWN UNDER A FIELD INDICATES THAT THAT FIELD IS REQUIRED TO HAVE THE VALUE OF x A ACKNOWLEDGE (THIS BIT POSITION MAY BE 0 FOR AN ACK OR 1 FOR A NACK) P STOP CONDITION PEC PACKET ERROR CODE MASTER TO SLAVE SLAVE TO MASTER CONTINUATION OF PROTOCOL 8 1 1 1 x x 1 1 ... SLAVE ADDRESS Rd/Wr A P 4686B F39 S 7 1 1 1 1 SLAVE ADDRESS COMMAND CODE Wr A A P 4686B F40 S 7 8 1 1 1 1 1 SLAVE ADDRESS COMMAND CODE PEC Wr A A A P 4686B F41 S 7 8 8 1 1 1 1 1 1 SLAVE ADDRESS COMMAND CODE DATA BYTE Wr A A A P 4686B F42 S 7 8 8 1 1 1 1 1 1 SLAVE ADDRESS COMMAND CODE DATA BYTE Wr A A A P 4686B F43 S 7 8 8 1 PEC 8 1 1 1 1 1 1 A |
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