58.13.1.12.2 Timing Constraints

The GMAC must be constrained so as to satisfy the timings of standards shown below and in 57.13.1.12.3 MII Mode, in MAX corner.

Table 58-63. GMAC Signals Relative to GMDC
Symbol Parameter Min Max Unit
GMAC1 Setup for GMDIO from GMDC rising 10 ns
GMAC2 Hold for GMDIO from GMDC rising 10
GMAC3 GMDIO toggling from GMDC falling 0(1) 10(1)

Note: 1. For GMAC output signals, min and max access time are defined. The min access time is the time between the GMDC falling edge and the signal change. The max access timing is the time between the GMDC falling edge and the signal stabilizes. The figure below illustrates min and max accesses for GMAC3.

Figure 58-28. Min and Max Access Time of GMAC Output Signals