ZHCSJ33F December 2015 – May 2019 DRA745 , DRA746 , DRA750 , DRA756
PRODUCTION DATA.
The three-port gigabit ethernet switch subsystem (GMAC_SW) provides ethernet packet communication and can be configured as an ethernet switch. It provides the Gigabit Media Independent Interface (G/MII) in MII mode, Reduced Gigabit Media Independent Interface (RGMII), Reduced Media Independent Interface (RMII), and the Management Data Input/Output (MDIO) for physical layer device (PHY) management.
NOTE
For more information, see the Ethernet Subsystem section of the Device TRM.
NOTE
The Gigabit, Reduced and Media Independent Interface n (n = 0 to 1) are also referred to as MIIn, RMIIn and RGMIIn
CAUTION
The IO timings provided in this section are only valid if signals within a single IOSET are used. The IOSETs are defined in the Table 7-75, Table 7-78, Table 7-83 and Table 7-90.
CAUTION
The IO Timings provided in this section are only valid for some GMAC usage modes when the corresponding Virtual IO Timings or Manual IO Timings are configured as described in the tables found in this section.
Table 7-71 and Figure 7-52 present timing requirements for MIIn in receive operation.