Associating

reset frequency tracking bandwidth to defaults
set BSSID in address match registers
update ACK/CTS tables in SHM
update slot timing
program ATIM window and CFP duration if appropriate
reset TSF/write beacon interval and CFP start if starting AP/IBSS
set mode bits in MAC control register
enable "beacons promisc" filter bit when starting IBSS
update Pre-TBTT time (both SHM and MMIO register): 2 if IBSS, otherwise 120 for A PHY, 250 for B/G PHY