Timing Parameters For Mii Transactions - Samsung S3C2501X User Manual

ETHERNET CONTROLLER

7.5.5 TIMING PARAMETERS FOR MII TRANSACTIONS

The timing diagrams in this section conform to the guidelines described in the "Draft Supplement to ANSI/IEEE
Std. 802.3, Section 22.3, Signal Characteristics."
TX_CLK
TXD[3:0]
TX_EN
Figure 7-13. Timing Relationship of Transmission Signals at MII
RX_CLK
RXD[3:0]
RX_DV
7-50
Figure 7-14. Timing Relationship of Reception Signals at MII
MDC
MDIO
Figure 7-15. MDIO Sourced by PHY
MDC
MDIO
Figure 7-16. MDIO Sourced by STA
28ns MIN
Output Valid
Ts: 3ns
Input
Valid
Ts: 15ns
Input Valid
Output Valid
4.9ns MIN
Th: 5ns
Th: 13ns
S3C2501X