Bluetooth Coexistence Schemes of WiFi

•1-wire handshake
–input: BT_ACTIVE
•2-wire handshakes
–input: BT_PRIORITY
–output: WL_ACTIVE
•3-wire handshakes
–input: BT_REQUEST, BT_STATE
–output: BT_GRANTn
•4-wire handshakes
–input: BT_REQUEST, BT_STATE, BT_FREQ
–output: BT_GRANTn