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IP101G-DS-R01 数据表(PDF) 53 Page - List of Unclassifed Manufacturers |
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IP101G-DS-R01 数据表(HTML) 53 Page - List of Unclassifed Manufacturers |
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53 / 65 page ![]() IP101G Data Sheet Set low to RESET_N pin, for at least 10ms will reset all functions available in IP101G. The bit 15 of Register 0 will put PHY into its default status. 5.9 Serial Management Interface IP101G supports one serial management interface (SMI). User can access IP101G’s MII registers through MDC and MDIO. Its format is shown in the following table. To access MII register in IP101G, MDC should be at least one more cycle than MDIO. That is, a complete command consists of 32 bits MDIO data and at least 33 MDC clocks. When the SMI is idle, MDIO is in high impedance. Table 9 SMI Format Frame format <Idle><start><op code><PHY address><Registers address><turnaround><data><idle> Read Operation <Idle><01><10><A4A3A2A1A0><R4R3R2R1R0><Z0><b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1b0><Idle> Write Operation <Idle><01><01><A4A3A2A1A0><R4R3R2R1R0><10><b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1b0><Idle> 0 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 0 1 0 1..1 idle start op code PHY address = 01h Reg address = 00h TA Register data b 1 5 b 1 4 b 1 3 b 1 2 b 1 1 b 1 0 b 9 b 8 b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0 idle A 4 A 3 A 2 A 1 A 0 R 4 R 3 R 2 R 1 R 0 write z z 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 Z 0 0 0 0 0 1 0 0 0 0 0 1 1 0 idle start op code PHY address = 01h Reg address = 00h TA Register data b 1 5 b 1 4 b 1 3 b 1 2 b 1 1 b 1 0 b 9 b 8 b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0 idle A 4 A 3 A 2 A 1 A 0 R 4 R 3 R 2 R 1 R 0 read z zz MDC MDIO MDC MDIO 1..1 1..1 1..1 Figure 16 MDC/MDIO Format 53/65 January 14, 2014 Copyright © 2011, IC Plus Corp. IP101G-DS-R01 |
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