Higher 16 bits of the secondary address of the peer device for ADV_DIR.
PEER_SEC_ADDR_H | Higher 16 bit of 48-bit secondary address of the peer device for ADV_DIR. While doing directed Advertising in device privacy mode, if the peer device has shared its IRK, then the peer device RPA is written into the PEER_ADDR registers and the peer device identity address is written into this register. If the peer device has not shared its IRK, then the peer identity address is written into the PEER_ADDR registers and this register must be cleared. |