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SH7672 Datasheet(PDF) 458 Page - Renesas Technology Corp

Part # SH7672
Description  32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series
PDF  1292 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7672 Datasheet(HTML) 458 Page - Renesas Technology Corp

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Section 12 Ethernet Controller (EtherC)
Rev. 1.00 Nov. 14, 2007 Page 432 of 1262
REJ09B0437-0100
MDC
(1)
(1) (2)
(3)
Write to PHY interface
register
MMD = 0
MDC = 0
Bus release timing
relationship
MDO
(2)
Write to PHY interface
register
MMD = 0
MDC = 1
(3)
Write to PHY interface
register
MMD = 0
MDC = 0
Figure 12.6 (2) Bus Release Flowchart (TA in Read in Figure 12.5)
MDC
(1)
(1)
(2)
(3)
Write to PHY interface
register
MMD = 0
MDC = 1
1-bit data read timing
relationship
(3) Write to PHY interface
register
MMD = 0
MDC = 0
(2) Read from PHY
interface register read
MMD = 0
MMC = 1
MDI is read data
MDI
Figure 12.6 (3) 1-Bit Data Read Flowchart



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