void __4_3_1__MAC_OPERATION() {
    /**
     * @group:       	4.3.1 MAC OPERATION
     *
     * @description: 	The device strictly abides by IEEE 802.3 standards to maximize compatibility. Additionally, there is an added MAC fil-
     * 					tering function to filter unicast packets. The MAC filtering function is useful in applications, such as VoIP, where restrict-
     * 					ing certain packets reduces congestion and thus improves performance.
     * 					The transmit MAC takes data from the egress buffer and creates full Ethernet frames by adding the preamble and the
     * 					start-of-frame delimiter ahead of the data, and generates the FCS that is appended to the end of the frame. It also sends
     * 					flow control packets as needed.
     * 					The receive MAC accepts data via the integrated PHY or via the SGMII/MII/RMII/RGMII interface. It decodes the data
     * 					bytes, strips off the preamble and SFD of each frame. The destination and source addresses and VLAN tag are
     * 					extracted for use in filtering and address/ID lookup, and the MAC also calculates the CRC of the received frame, which
     * 					is compared to the FCS field. The MAC can discard frames that are the wrong size, that have an FCS error, or when
     * 					the source MAC address matches the Switch MAC address.
     * 					The receive MAC also implements the Wake on LAN (WoL) feature. This system power saving feature is described in
     * 					detail in the Section 4.11, "Power Management".
     * 					MIB statistics are collected in both receive and transmit directions.
     *
     */
}