This section is only applicable if the TEMAC solution is implemented with the optional Ethernet AVB Endpoint functionality.
The three AVB frame filters are initialized to identify PTP frames and AV frames of both priorities. These initial values can be adjusted to change the VLAN field values used by the software drivers as required.
The Frame Filter Control register (Table 4) allows you to access each of the AVB frame filters by setting Bit[8] and AVB Select. When set, Bits[1:0] are used to specify the required AVB frame filter with the value of 3 is ignored. See AVB Specific Frame Filters for the register definitions of the PTP Frame filter.